Home / 225,131.43-310,678.96-123,158.91

Finding the Fourth Proportional to 225,131.43, 310,678.96 and 123,158.91

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Solution

The fourth proportional to 225,131.43, 310,678.96 and 123,158.91 is: 169,957.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,131.43 : 310,678.96 = 123,158.91 : x
  2. Step 2: Convert to fraction form
    225,131.43/310,678.96 = 123,158.91/x
  3. Step 3: Cross multiply
    225,131.43x = 310,678.96 × 123,158.91
  4. Step 4: Simplify right side
    225,131.43x = 38,262,883,161.61
  5. Step 5: Solve for x
    x = 38,262,883,161.61/225,131.43
  6. Step 6: Final answer
    x = 169,957.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.