Home / 115,711.87-159,618.12-67,308.35

Finding the Fourth Proportional to 115,711.87, 159,618.12 and 67,308.35

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Solution

The fourth proportional to 115,711.87, 159,618.12 and 67,308.35 is: 92,848.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,711.87 : 159,618.12 = 67,308.35 : x
  2. Step 2: Convert to fraction form
    115,711.87/159,618.12 = 67,308.35/x
  3. Step 3: Cross multiply
    115,711.87x = 159,618.12 × 67,308.35
  4. Step 4: Simplify right side
    115,711.87x = 10,743,631,489.21
  5. Step 5: Solve for x
    x = 10,743,631,489.21/115,711.87
  6. Step 6: Final answer
    x = 92,848.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.