Home / 124,734,059.20-186,817,653.60-78,817,556.80

Finding the Fourth Proportional to 124,734,059.20, 186,817,653.60 and 78,817,556.80

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Solution

The fourth proportional to 124,734,059.20, 186,817,653.60 and 78,817,556.80 is: 118,047,236.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,734,059.20 : 186,817,653.60 = 78,817,556.80 : x
  2. Step 2: Convert to fraction form
    124,734,059.20/186,817,653.60 = 78,817,556.80/x
  3. Step 3: Cross multiply
    124,734,059.20x = 186,817,653.60 × 78,817,556.80
  4. Step 4: Simplify right side
    124,734,059.20x = 14,724,511,023,860,724
  5. Step 5: Solve for x
    x = 14,724,511,023,860,724/124,734,059.20
  6. Step 6: Final answer
    x = 118,047,236.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.