Home / 243,534.72-336,061.44-136,099.20

Finding the Fourth Proportional to 243,534.72, 336,061.44 and 136,099.20

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Solution

The fourth proportional to 243,534.72, 336,061.44 and 136,099.20 is: 187,807.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,534.72 : 336,061.44 = 136,099.20 : x
  2. Step 2: Convert to fraction form
    243,534.72/336,061.44 = 136,099.20/x
  3. Step 3: Cross multiply
    243,534.72x = 336,061.44 × 136,099.20
  4. Step 4: Simplify right side
    243,534.72x = 45,737,693,134.85
  5. Step 5: Solve for x
    x = 45,737,693,134.85/243,534.72
  6. Step 6: Final answer
    x = 187,807.69

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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.