Home / 137,691.90-189,944.55-89,973.18

Finding the Fourth Proportional to 137,691.90, 189,944.55 and 89,973.18

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Solution

The fourth proportional to 137,691.90, 189,944.55 and 89,973.18 is: 124,117.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,691.90 : 189,944.55 = 89,973.18 : x
  2. Step 2: Convert to fraction form
    137,691.90/189,944.55 = 89,973.18/x
  3. Step 3: Cross multiply
    137,691.90x = 189,944.55 × 89,973.18
  4. Step 4: Simplify right side
    137,691.90x = 17,089,915,187.17
  5. Step 5: Solve for x
    x = 17,089,915,187.17/137,691.90
  6. Step 6: Final answer
    x = 124,117.07

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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.