Home / 136,039.70-204,059.55-86,176.10

Finding the Fourth Proportional to 136,039.70, 204,059.55 and 86,176.10

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Solution

The fourth proportional to 136,039.70, 204,059.55 and 86,176.10 is: 129,264.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,039.70 : 204,059.55 = 86,176.10 : x
  2. Step 2: Convert to fraction form
    136,039.70/204,059.55 = 86,176.10/x
  3. Step 3: Cross multiply
    136,039.70x = 204,059.55 × 86,176.10
  4. Step 4: Simplify right side
    136,039.70x = 17,585,056,186.76
  5. Step 5: Solve for x
    x = 17,585,056,186.76/136,039.70
  6. Step 6: Final answer
    x = 129,264.15

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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.