Home / 153,209.24-229,807.92-78,328.52

Finding the Fourth Proportional to 153,209.24, 229,807.92 and 78,328.52

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Solution

The fourth proportional to 153,209.24, 229,807.92 and 78,328.52 is: 117,489.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,209.24 : 229,807.92 = 78,328.52 : x
  2. Step 2: Convert to fraction form
    153,209.24/229,807.92 = 78,328.52/x
  3. Step 3: Cross multiply
    153,209.24x = 229,807.92 × 78,328.52
  4. Step 4: Simplify right side
    153,209.24x = 18,000,514,257.88
  5. Step 5: Solve for x
    x = 18,000,514,257.88/153,209.24
  6. Step 6: Final answer
    x = 117,489.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.