Home / 153,113.60-229,437.12-78,230.72

Finding the Fourth Proportional to 153,113.60, 229,437.12 and 78,230.72

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Solution

The fourth proportional to 153,113.60, 229,437.12 and 78,230.72 is: 117,226.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,113.60 : 229,437.12 = 78,230.72 : x
  2. Step 2: Convert to fraction form
    153,113.60/229,437.12 = 78,230.72/x
  3. Step 3: Cross multiply
    153,113.60x = 229,437.12 × 78,230.72
  4. Step 4: Simplify right side
    153,113.60x = 17,949,031,092.33
  5. Step 5: Solve for x
    x = 17,949,031,092.33/153,113.60
  6. Step 6: Final answer
    x = 117,226.89

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1.5x scale

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.