Home / 151,332.38-208,836.10-83,355.72

Finding the Fourth Proportional to 151,332.38, 208,836.10 and 83,355.72

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Solution

The fourth proportional to 151,332.38, 208,836.10 and 83,355.72 is: 115,029.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,332.38 : 208,836.10 = 83,355.72 : x
  2. Step 2: Convert to fraction form
    151,332.38/208,836.10 = 83,355.72/x
  3. Step 3: Cross multiply
    151,332.38x = 208,836.10 × 83,355.72
  4. Step 4: Simplify right side
    151,332.38x = 17,407,683,477.49
  5. Step 5: Solve for x
    x = 17,407,683,477.49/151,332.38
  6. Step 6: Final answer
    x = 115,029.47

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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.