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Finding the Fourth Proportional to 115,882.53, 159,904.68 and 64,888.17

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Solution

The fourth proportional to 115,882.53, 159,904.68 and 64,888.17 is: 89,538.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,882.53 : 159,904.68 = 64,888.17 : x
  2. Step 2: Convert to fraction form
    115,882.53/159,904.68 = 64,888.17/x
  3. Step 3: Cross multiply
    115,882.53x = 159,904.68 × 64,888.17
  4. Step 4: Simplify right side
    115,882.53x = 10,375,922,059.64
  5. Step 5: Solve for x
    x = 10,375,922,059.64/115,882.53
  6. Step 6: Final answer
    x = 89,538.28

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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.