Home / 225,157.23-310,715.85-123,180.84

Finding the Fourth Proportional to 225,157.23, 310,715.85 and 123,180.84

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Solution

The fourth proportional to 225,157.23, 310,715.85 and 123,180.84 is: 169,988.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,157.23 : 310,715.85 = 123,180.84 : x
  2. Step 2: Convert to fraction form
    225,157.23/310,715.85 = 123,180.84/x
  3. Step 3: Cross multiply
    225,157.23x = 310,715.85 × 123,180.84
  4. Step 4: Simplify right side
    225,157.23x = 38,274,239,404.31
  5. Step 5: Solve for x
    x = 38,274,239,404.31/225,157.23
  6. Step 6: Final answer
    x = 169,988.94

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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.