Home / 137,522.60-189,764.22-83,788.04

Finding the Fourth Proportional to 137,522.60, 189,764.22 and 83,788.04

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Solution

The fourth proportional to 137,522.60, 189,764.22 and 83,788.04 is: 115,617.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,522.60 : 189,764.22 = 83,788.04 : x
  2. Step 2: Convert to fraction form
    137,522.60/189,764.22 = 83,788.04/x
  3. Step 3: Cross multiply
    137,522.60x = 189,764.22 × 83,788.04
  4. Step 4: Simplify right side
    137,522.60x = 15,899,972,055.93
  5. Step 5: Solve for x
    x = 15,899,972,055.93/137,522.60
  6. Step 6: Final answer
    x = 115,617.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.