Home / 161,748.13-223,209.40-90,126.61

Finding the Fourth Proportional to 161,748.13, 223,209.40 and 90,126.61

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Solution

The fourth proportional to 161,748.13, 223,209.40 and 90,126.61 is: 124,373.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,748.13 : 223,209.40 = 90,126.61 : x
  2. Step 2: Convert to fraction form
    161,748.13/223,209.40 = 90,126.61/x
  3. Step 3: Cross multiply
    161,748.13x = 223,209.40 × 90,126.61
  4. Step 4: Simplify right side
    161,748.13x = 20,117,106,542.13
  5. Step 5: Solve for x
    x = 20,117,106,542.13/161,748.13
  6. Step 6: Final answer
    x = 124,373.04

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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.