Home / 136,301.81-204,384.94-86,344.04

Finding the Fourth Proportional to 136,301.81, 204,384.94 and 86,344.04

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Solution

The fourth proportional to 136,301.81, 204,384.94 and 86,344.04 is: 129,473.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,301.81 : 204,384.94 = 86,344.04 : x
  2. Step 2: Convert to fraction form
    136,301.81/204,384.94 = 86,344.04/x
  3. Step 3: Cross multiply
    136,301.81x = 204,384.94 × 86,344.04
  4. Step 4: Simplify right side
    136,301.81x = 17,647,421,729.86
  5. Step 5: Solve for x
    x = 17,647,421,729.86/136,301.81
  6. Step 6: Final answer
    x = 129,473.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.