Home / 154,532.16-231,726.78-70,288.92

Finding the Fourth Proportional to 154,532.16, 231,726.78 and 70,288.92

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Solution

The fourth proportional to 154,532.16, 231,726.78 and 70,288.92 is: 105,400.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,532.16 : 231,726.78 = 70,288.92 : x
  2. Step 2: Convert to fraction form
    154,532.16/231,726.78 = 70,288.92/x
  3. Step 3: Cross multiply
    154,532.16x = 231,726.78 × 70,288.92
  4. Step 4: Simplify right side
    154,532.16x = 16,287,825,101.28
  5. Step 5: Solve for x
    x = 16,287,825,101.28/154,532.16
  6. Step 6: Final answer
    x = 105,400.88

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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.