Home / 151,332.25-208,838.52-87,706.96

Finding the Fourth Proportional to 151,332.25, 208,838.52 and 87,706.96

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Solution

The fourth proportional to 151,332.25, 208,838.52 and 87,706.96 is: 121,035.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,332.25 : 208,838.52 = 87,706.96 : x
  2. Step 2: Convert to fraction form
    151,332.25/208,838.52 = 87,706.96/x
  3. Step 3: Cross multiply
    151,332.25x = 208,838.52 × 87,706.96
  4. Step 4: Simplify right side
    151,332.25x = 18,316,591,720.10
  5. Step 5: Solve for x
    x = 18,316,591,720.10/151,332.25
  6. Step 6: Final answer
    x = 121,035.61

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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.