Home / 113,335,397.40-169,719,660.90-90,660,581.40

Finding the Fourth Proportional to 113,335,397.40, 169,719,660.90 and 90,660,581.40

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Solution

The fourth proportional to 113,335,397.40, 169,719,660.90 and 90,660,581.40 is: 135,764,143.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,335,397.40 : 169,719,660.90 = 90,660,581.40 : x
  2. Step 2: Convert to fraction form
    113,335,397.40/169,719,660.90 = 90,660,581.40/x
  3. Step 3: Cross multiply
    113,335,397.40x = 169,719,660.90 × 90,660,581.40
  4. Step 4: Simplify right side
    113,335,397.40x = 15,386,883,132,204,848
  5. Step 5: Solve for x
    x = 15,386,883,132,204,848/113,335,397.40
  6. Step 6: Final answer
    x = 135,764,143.29

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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.