Home / 102,155,129.20-153,232,693.80-67,965,612.40

Finding the Fourth Proportional to 102,155,129.20, 153,232,693.80 and 67,965,612.40

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Solution

The fourth proportional to 102,155,129.20, 153,232,693.80 and 67,965,612.40 is: 101,948,418.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,155,129.20 : 153,232,693.80 = 67,965,612.40 : x
  2. Step 2: Convert to fraction form
    102,155,129.20/153,232,693.80 = 67,965,612.40/x
  3. Step 3: Cross multiply
    102,155,129.20x = 153,232,693.80 × 67,965,612.40
  4. Step 4: Simplify right side
    102,155,129.20x = 10,414,553,873,818,684
  5. Step 5: Solve for x
    x = 10,414,553,873,818,684/102,155,129.20
  6. Step 6: Final answer
    x = 101,948,418.60

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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.