Home / 129,090.90-193,471.41-104,142.71

Finding the Fourth Proportional to 129,090.90, 193,471.41 and 104,142.71

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Solution

The fourth proportional to 129,090.90, 193,471.41 and 104,142.71 is: 156,081.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,090.90 : 193,471.41 = 104,142.71 : x
  2. Step 2: Convert to fraction form
    129,090.90/193,471.41 = 104,142.71/x
  3. Step 3: Cross multiply
    129,090.90x = 193,471.41 × 104,142.71
  4. Step 4: Simplify right side
    129,090.90x = 20,148,636,944.92
  5. Step 5: Solve for x
    x = 20,148,636,944.92/129,090.90
  6. Step 6: Final answer
    x = 156,081.00

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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.