Home / 121,363.56-182,032.38-42,479.28

Finding the Fourth Proportional to 121,363.56, 182,032.38 and 42,479.28

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Solution

The fourth proportional to 121,363.56, 182,032.38 and 42,479.28 is: 63,714.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,363.56 : 182,032.38 = 42,479.28 : x
  2. Step 2: Convert to fraction form
    121,363.56/182,032.38 = 42,479.28/x
  3. Step 3: Cross multiply
    121,363.56x = 182,032.38 × 42,479.28
  4. Step 4: Simplify right side
    121,363.56x = 7,732,604,439.09
  5. Step 5: Solve for x
    x = 7,732,604,439.09/121,363.56
  6. Step 6: Final answer
    x = 63,714.38

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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.