Home / 178,042.86-266,874.89-121,867.20

Finding the Fourth Proportional to 178,042.86, 266,874.89 and 121,867.20

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Solution

The fourth proportional to 178,042.86, 266,874.89 and 121,867.20 is: 182,671.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,042.86 : 266,874.89 = 121,867.20 : x
  2. Step 2: Convert to fraction form
    178,042.86/266,874.89 = 121,867.20/x
  3. Step 3: Cross multiply
    178,042.86x = 266,874.89 × 121,867.20
  4. Step 4: Simplify right side
    178,042.86x = 32,523,294,985.27
  5. Step 5: Solve for x
    x = 32,523,294,985.27/178,042.86
  6. Step 6: Final answer
    x = 182,671.16

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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.