Home / 151,714.27-209,358.57-87,138.08

Finding the Fourth Proportional to 151,714.27, 209,358.57 and 87,138.08

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Solution

The fourth proportional to 151,714.27, 209,358.57 and 87,138.08 is: 120,246.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,714.27 : 209,358.57 = 87,138.08 : x
  2. Step 2: Convert to fraction form
    151,714.27/209,358.57 = 87,138.08/x
  3. Step 3: Cross multiply
    151,714.27x = 209,358.57 × 87,138.08
  4. Step 4: Simplify right side
    151,714.27x = 18,243,102,774.55
  5. Step 5: Solve for x
    x = 18,243,102,774.55/151,714.27
  6. Step 6: Final answer
    x = 120,246.45

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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.