Home / 121,034.96-181,557.30-42,157.16

Finding the Fourth Proportional to 121,034.96, 181,557.30 and 42,157.16

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Solution

The fourth proportional to 121,034.96, 181,557.30 and 42,157.16 is: 63,237.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,034.96 : 181,557.30 = 42,157.16 : x
  2. Step 2: Convert to fraction form
    121,034.96/181,557.30 = 42,157.16/x
  3. Step 3: Cross multiply
    121,034.96x = 181,557.30 × 42,157.16
  4. Step 4: Simplify right side
    121,034.96x = 7,653,940,145.27
  5. Step 5: Solve for x
    x = 7,653,940,145.27/121,034.96
  6. Step 6: Final answer
    x = 63,237.43

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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.