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Finding the Fourth Proportional to 153,229.60, 229,843.32 and 90,710.56

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Solution

The fourth proportional to 153,229.60, 229,843.32 and 90,710.56 is: 136,065.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,229.60 : 229,843.32 = 90,710.56 : x
  2. Step 2: Convert to fraction form
    153,229.60/229,843.32 = 90,710.56/x
  3. Step 3: Cross multiply
    153,229.60x = 229,843.32 × 90,710.56
  4. Step 4: Simplify right side
    153,229.60x = 20,849,216,269.46
  5. Step 5: Solve for x
    x = 20,849,216,269.46/153,229.60
  6. Step 6: Final answer
    x = 136,065.20

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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.