Home / 136,129.10-203,707.65-86,233.10

Finding the Fourth Proportional to 136,129.10, 203,707.65 and 86,233.10

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Solution

The fourth proportional to 136,129.10, 203,707.65 and 86,233.10 is: 129,041.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,129.10 : 203,707.65 = 86,233.10 : x
  2. Step 2: Convert to fraction form
    136,129.10/203,707.65 = 86,233.10/x
  3. Step 3: Cross multiply
    136,129.10x = 203,707.65 × 86,233.10
  4. Step 4: Simplify right side
    136,129.10x = 17,566,342,153.22
  5. Step 5: Solve for x
    x = 17,566,342,153.22/136,129.10
  6. Step 6: Final answer
    x = 129,041.79

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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.