Home / 98,280.40-147,420.60-28,166.80

Finding the Fourth Proportional to 98,280.40, 147,420.60 and 28,166.80

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Solution

The fourth proportional to 98,280.40, 147,420.60 and 28,166.80 is: 42,250.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,280.40 : 147,420.60 = 28,166.80 : x
  2. Step 2: Convert to fraction form
    98,280.40/147,420.60 = 28,166.80/x
  3. Step 3: Cross multiply
    98,280.40x = 147,420.60 × 28,166.80
  4. Step 4: Simplify right side
    98,280.40x = 4,152,366,556.08
  5. Step 5: Solve for x
    x = 4,152,366,556.08/98,280.40
  6. Step 6: Final answer
    x = 42,250.20

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1.5x scale

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.