Home / 136,319.29-204,480.23-85,043.53

Finding the Fourth Proportional to 136,319.29, 204,480.23 and 85,043.53

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Solution

The fourth proportional to 136,319.29, 204,480.23 and 85,043.53 is: 127,566.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,319.29 : 204,480.23 = 85,043.53 : x
  2. Step 2: Convert to fraction form
    136,319.29/204,480.23 = 85,043.53/x
  3. Step 3: Cross multiply
    136,319.29x = 204,480.23 × 85,043.53
  4. Step 4: Simplify right side
    136,319.29x = 17,389,721,395.69
  5. Step 5: Solve for x
    x = 17,389,721,395.69/136,319.29
  6. Step 6: Final answer
    x = 127,566.11

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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.