Home / 120,954.13-181,475.57-42,090.91

Finding the Fourth Proportional to 120,954.13, 181,475.57 and 42,090.91

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Solution

The fourth proportional to 120,954.13, 181,475.57 and 42,090.91 is: 63,151.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,954.13 : 181,475.57 = 42,090.91 : x
  2. Step 2: Convert to fraction form
    120,954.13/181,475.57 = 42,090.91/x
  3. Step 3: Cross multiply
    120,954.13x = 181,475.57 × 42,090.91
  4. Step 4: Simplify right side
    120,954.13x = 7,638,471,535.61
  5. Step 5: Solve for x
    x = 7,638,471,535.61/120,954.13
  6. Step 6: Final answer
    x = 63,151.81

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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.