Home / 121,625.32-182,447.70-42,757.24

Finding the Fourth Proportional to 121,625.32, 182,447.70 and 42,757.24

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Solution

The fourth proportional to 121,625.32, 182,447.70 and 42,757.24 is: 64,139.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,625.32 : 182,447.70 = 42,757.24 : x
  2. Step 2: Convert to fraction form
    121,625.32/182,447.70 = 42,757.24/x
  3. Step 3: Cross multiply
    121,625.32x = 182,447.70 × 42,757.24
  4. Step 4: Simplify right side
    121,625.32x = 7,800,960,096.35
  5. Step 5: Solve for x
    x = 7,800,960,096.35/121,625.32
  6. Step 6: Final answer
    x = 64,139.28

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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.