Home / 151,424.13-208,962.66-87,767.85

Finding the Fourth Proportional to 151,424.13, 208,962.66 and 87,767.85

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Solution

The fourth proportional to 151,424.13, 208,962.66 and 87,767.85 is: 121,118.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,424.13 : 208,962.66 = 87,767.85 : x
  2. Step 2: Convert to fraction form
    151,424.13/208,962.66 = 87,767.85/x
  3. Step 3: Cross multiply
    151,424.13x = 208,962.66 × 87,767.85
  4. Step 4: Simplify right side
    151,424.13x = 18,340,203,398.48
  5. Step 5: Solve for x
    x = 18,340,203,398.48/151,424.13
  6. Step 6: Final answer
    x = 121,118.10

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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.