Home / 151,249.23-208,700.80-87,574.72

Finding the Fourth Proportional to 151,249.23, 208,700.80 and 87,574.72

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Solution

The fourth proportional to 151,249.23, 208,700.80 and 87,574.72 is: 120,839.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,249.23 : 208,700.80 = 87,574.72 : x
  2. Step 2: Convert to fraction form
    151,249.23/208,700.80 = 87,574.72/x
  3. Step 3: Cross multiply
    151,249.23x = 208,700.80 × 87,574.72
  4. Step 4: Simplify right side
    151,249.23x = 18,276,914,123.78
  5. Step 5: Solve for x
    x = 18,276,914,123.78/151,249.23
  6. Step 6: Final answer
    x = 120,839.72

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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.