Home / 243,564.24-336,134.40-136,138.80

Finding the Fourth Proportional to 243,564.24, 336,134.40 and 136,138.80

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Solution

The fourth proportional to 243,564.24, 336,134.40 and 136,138.80 is: 187,880.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,564.24 : 336,134.40 = 136,138.80 : x
  2. Step 2: Convert to fraction form
    243,564.24/336,134.40 = 136,138.80/x
  3. Step 3: Cross multiply
    243,564.24x = 336,134.40 × 136,138.80
  4. Step 4: Simplify right side
    243,564.24x = 45,760,933,854.72
  5. Step 5: Solve for x
    x = 45,760,933,854.72/243,564.24
  6. Step 6: Final answer
    x = 187,880.35

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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.