Home / 112,925,059.20-169,009,675.20-78,912,835.20

Finding the Fourth Proportional to 112,925,059.20, 169,009,675.20 and 78,912,835.20

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Solution

The fourth proportional to 112,925,059.20, 169,009,675.20 and 78,912,835.20 is: 118,105,164.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,925,059.20 : 169,009,675.20 = 78,912,835.20 : x
  2. Step 2: Convert to fraction form
    112,925,059.20/169,009,675.20 = 78,912,835.20/x
  3. Step 3: Cross multiply
    112,925,059.20x = 169,009,675.20 × 78,912,835.20
  4. Step 4: Simplify right side
    112,925,059.20x = 13,337,032,646,263,126
  5. Step 5: Solve for x
    x = 13,337,032,646,263,126/112,925,059.20
  6. Step 6: Final answer
    x = 118,105,164.09

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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.