Home / 111,600.68-153,951.81-71,272.04

Finding the Fourth Proportional to 111,600.68, 153,951.81 and 71,272.04

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Solution

The fourth proportional to 111,600.68, 153,951.81 and 71,272.04 is: 98,318.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,600.68 : 153,951.81 = 71,272.04 : x
  2. Step 2: Convert to fraction form
    111,600.68/153,951.81 = 71,272.04/x
  3. Step 3: Cross multiply
    111,600.68x = 153,951.81 × 71,272.04
  4. Step 4: Simplify right side
    111,600.68x = 10,972,459,560.39
  5. Step 5: Solve for x
    x = 10,972,459,560.39/111,600.68
  6. Step 6: Final answer
    x = 98,318.93

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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.