Home / 137,091.18-189,132.66-86,082.24

Finding the Fourth Proportional to 137,091.18, 189,132.66 and 86,082.24

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Solution

The fourth proportional to 137,091.18, 189,132.66 and 86,082.24 is: 118,760.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,091.18 : 189,132.66 = 86,082.24 : x
  2. Step 2: Convert to fraction form
    137,091.18/189,132.66 = 86,082.24/x
  3. Step 3: Cross multiply
    137,091.18x = 189,132.66 × 86,082.24
  4. Step 4: Simplify right side
    137,091.18x = 16,280,963,029.96
  5. Step 5: Solve for x
    x = 16,280,963,029.96/137,091.18
  6. Step 6: Final answer
    x = 118,760.11

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1.5x scale

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.