Home / 121,753.78-182,715.45-42,874.36

Finding the Fourth Proportional to 121,753.78, 182,715.45 and 42,874.36

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Solution

The fourth proportional to 121,753.78, 182,715.45 and 42,874.36 is: 64,341.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,753.78 : 182,715.45 = 42,874.36 : x
  2. Step 2: Convert to fraction form
    121,753.78/182,715.45 = 42,874.36/x
  3. Step 3: Cross multiply
    121,753.78x = 182,715.45 × 42,874.36
  4. Step 4: Simplify right side
    121,753.78x = 7,833,807,980.86
  5. Step 5: Solve for x
    x = 7,833,807,980.86/121,753.78
  6. Step 6: Final answer
    x = 64,341.39

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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.