Home / 102,155,129.70-153,232,694.55-67,965,612.90

Finding the Fourth Proportional to 102,155,129.70, 153,232,694.55 and 67,965,612.90

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Solution

The fourth proportional to 102,155,129.70, 153,232,694.55 and 67,965,612.90 is: 101,948,419.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,155,129.70 : 153,232,694.55 = 67,965,612.90 : x
  2. Step 2: Convert to fraction form
    102,155,129.70/153,232,694.55 = 67,965,612.90/x
  3. Step 3: Cross multiply
    102,155,129.70x = 153,232,694.55 × 67,965,612.90
  4. Step 4: Simplify right side
    102,155,129.70x = 10,414,554,001,409,242
  5. Step 5: Solve for x
    x = 10,414,554,001,409,242/102,155,129.70
  6. Step 6: Final answer
    x = 101,948,419.35

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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.