Home / 137,581.12-189,889.17-89,242.95

Finding the Fourth Proportional to 137,581.12, 189,889.17 and 89,242.95

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Solution

The fourth proportional to 137,581.12, 189,889.17 and 89,242.95 is: 123,172.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,581.12 : 189,889.17 = 89,242.95 : x
  2. Step 2: Convert to fraction form
    137,581.12/189,889.17 = 89,242.95/x
  3. Step 3: Cross multiply
    137,581.12x = 189,889.17 × 89,242.95
  4. Step 4: Simplify right side
    137,581.12x = 16,946,269,703.85
  5. Step 5: Solve for x
    x = 16,946,269,703.85/137,581.12
  6. Step 6: Final answer
    x = 123,172.93

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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.