Home / 121,248.64-181,902.21-38,142.64

Finding the Fourth Proportional to 121,248.64, 181,902.21 and 38,142.64

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Solution

The fourth proportional to 121,248.64, 181,902.21 and 38,142.64 is: 57,223.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,248.64 : 181,902.21 = 38,142.64 : x
  2. Step 2: Convert to fraction form
    121,248.64/181,902.21 = 38,142.64/x
  3. Step 3: Cross multiply
    121,248.64x = 181,902.21 × 38,142.64
  4. Step 4: Simplify right side
    121,248.64x = 6,938,230,511.23
  5. Step 5: Solve for x
    x = 6,938,230,511.23/121,248.64
  6. Step 6: Final answer
    x = 57,223.16

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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.