Home / 152,711.60-229,240.20-90,417.20

Finding the Fourth Proportional to 152,711.60, 229,240.20 and 90,417.20

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Solution

The fourth proportional to 152,711.60, 229,240.20 and 90,417.20 is: 135,728.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,711.60 : 229,240.20 = 90,417.20 : x
  2. Step 2: Convert to fraction form
    152,711.60/229,240.20 = 90,417.20/x
  3. Step 3: Cross multiply
    152,711.60x = 229,240.20 × 90,417.20
  4. Step 4: Simplify right side
    152,711.60x = 20,727,257,011.44
  5. Step 5: Solve for x
    x = 20,727,257,011.44/152,711.60
  6. Step 6: Final answer
    x = 135,728.11

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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.