Home / 243,490.16-336,029.40-136,062.80

Finding the Fourth Proportional to 243,490.16, 336,029.40 and 136,062.80

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Solution

The fourth proportional to 243,490.16, 336,029.40 and 136,062.80 is: 187,773.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,490.16 : 336,029.40 = 136,062.80 : x
  2. Step 2: Convert to fraction form
    243,490.16/336,029.40 = 136,062.80/x
  3. Step 3: Cross multiply
    243,490.16x = 336,029.40 × 136,062.80
  4. Step 4: Simplify right side
    243,490.16x = 45,721,101,046.32
  5. Step 5: Solve for x
    x = 45,721,101,046.32/243,490.16
  6. Step 6: Final answer
    x = 187,773.92

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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.