Home / 120,902.76-181,011.96-92,407.06

Finding the Fourth Proportional to 120,902.76, 181,011.96 and 92,407.06

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Solution

The fourth proportional to 120,902.76, 181,011.96 and 92,407.06 is: 138,349.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,902.76 : 181,011.96 = 92,407.06 : x
  2. Step 2: Convert to fraction form
    120,902.76/181,011.96 = 92,407.06/x
  3. Step 3: Cross multiply
    120,902.76x = 181,011.96 × 92,407.06
  4. Step 4: Simplify right side
    120,902.76x = 16,726,781,681.34
  5. Step 5: Solve for x
    x = 16,726,781,681.34/120,902.76
  6. Step 6: Final answer
    x = 138,349.05

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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.