Home / 121,034.46-181,556.55-42,156.66

Finding the Fourth Proportional to 121,034.46, 181,556.55 and 42,156.66

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Solution

The fourth proportional to 121,034.46, 181,556.55 and 42,156.66 is: 63,236.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,034.46 : 181,556.55 = 42,156.66 : x
  2. Step 2: Convert to fraction form
    121,034.46/181,556.55 = 42,156.66/x
  3. Step 3: Cross multiply
    121,034.46x = 181,556.55 × 42,156.66
  4. Step 4: Simplify right side
    121,034.46x = 7,653,817,749.12
  5. Step 5: Solve for x
    x = 7,653,817,749.12/121,034.46
  6. Step 6: Final answer
    x = 63,236.68

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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.