Home / 151,119.62-208,532.22-87,461.36

Finding the Fourth Proportional to 151,119.62, 208,532.22 and 87,461.36

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Solution

The fourth proportional to 151,119.62, 208,532.22 and 87,461.36 is: 120,689.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,119.62 : 208,532.22 = 87,461.36 : x
  2. Step 2: Convert to fraction form
    151,119.62/208,532.22 = 87,461.36/x
  3. Step 3: Cross multiply
    151,119.62x = 208,532.22 × 87,461.36
  4. Step 4: Simplify right side
    151,119.62x = 18,238,511,565.02
  5. Step 5: Solve for x
    x = 18,238,511,565.02/151,119.62
  6. Step 6: Final answer
    x = 120,689.24

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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.