Home / 124,398,281.10-186,681,402.45-81,162,165.90

Finding the Fourth Proportional to 124,398,281.10, 186,681,402.45 and 81,162,165.90

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Solution

The fourth proportional to 124,398,281.10, 186,681,402.45 and 81,162,165.90 is: 121,798,041.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,398,281.10 : 186,681,402.45 = 81,162,165.90 : x
  2. Step 2: Convert to fraction form
    124,398,281.10/186,681,402.45 = 81,162,165.90/x
  3. Step 3: Cross multiply
    124,398,281.10x = 186,681,402.45 × 81,162,165.90
  4. Step 4: Simplify right side
    124,398,281.10x = 15,151,466,956,091,566
  5. Step 5: Solve for x
    x = 15,151,466,956,091,566/124,398,281.10
  6. Step 6: Final answer
    x = 121,798,041.12

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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.