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Finding the Fourth Proportional to 115,274.93, 159,079.08 and 64,287.71

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Solution

The fourth proportional to 115,274.93, 159,079.08 and 64,287.71 is: 88,716.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,274.93 : 159,079.08 = 64,287.71 : x
  2. Step 2: Convert to fraction form
    115,274.93/159,079.08 = 64,287.71/x
  3. Step 3: Cross multiply
    115,274.93x = 159,079.08 × 64,287.71
  4. Step 4: Simplify right side
    115,274.93x = 10,226,829,762.11
  5. Step 5: Solve for x
    x = 10,226,829,762.11/115,274.93
  6. Step 6: Final answer
    x = 88,716.86

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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.