Home / 151,118.62-208,530.84-87,460.36

Finding the Fourth Proportional to 151,118.62, 208,530.84 and 87,460.36

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Solution

The fourth proportional to 151,118.62, 208,530.84 and 87,460.36 is: 120,687.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,118.62 : 208,530.84 = 87,460.36 : x
  2. Step 2: Convert to fraction form
    151,118.62/208,530.84 = 87,460.36/x
  3. Step 3: Cross multiply
    151,118.62x = 208,530.84 × 87,460.36
  4. Step 4: Simplify right side
    151,118.62x = 18,238,182,337.50
  5. Step 5: Solve for x
    x = 18,238,182,337.50/151,118.62
  6. Step 6: Final answer
    x = 120,687.86

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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.