Home / 243,564.67-336,120.49-136,132.40

Finding the Fourth Proportional to 243,564.67, 336,120.49 and 136,132.40

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Solution

The fourth proportional to 243,564.67, 336,120.49 and 136,132.40 is: 187,863.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,564.67 : 336,120.49 = 136,132.40 : x
  2. Step 2: Convert to fraction form
    243,564.67/336,120.49 = 136,132.40/x
  3. Step 3: Cross multiply
    243,564.67x = 336,120.49 × 136,132.40
  4. Step 4: Simplify right side
    243,564.67x = 45,756,887,346.92
  5. Step 5: Solve for x
    x = 45,756,887,346.92/243,564.67
  6. Step 6: Final answer
    x = 187,863.40

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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.