Home / 224,158.86-309,345.11-138,174.66

Finding the Fourth Proportional to 224,158.86, 309,345.11 and 138,174.66

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Solution

The fourth proportional to 224,158.86, 309,345.11 and 138,174.66 is: 190,684.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,158.86 : 309,345.11 = 138,174.66 : x
  2. Step 2: Convert to fraction form
    224,158.86/309,345.11 = 138,174.66/x
  3. Step 3: Cross multiply
    224,158.86x = 309,345.11 × 138,174.66
  4. Step 4: Simplify right side
    224,158.86x = 42,743,655,561.20
  5. Step 5: Solve for x
    x = 42,743,655,561.20/224,158.86
  6. Step 6: Final answer
    x = 190,684.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.