Home / 137,377.27-189,140.02-107,123.77

Finding the Fourth Proportional to 137,377.27, 189,140.02 and 107,123.77

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Solution

The fourth proportional to 137,377.27, 189,140.02 and 107,123.77 is: 147,487.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,377.27 : 189,140.02 = 107,123.77 : x
  2. Step 2: Convert to fraction form
    137,377.27/189,140.02 = 107,123.77/x
  3. Step 3: Cross multiply
    137,377.27x = 189,140.02 × 107,123.77
  4. Step 4: Simplify right side
    137,377.27x = 20,261,392,000.28
  5. Step 5: Solve for x
    x = 20,261,392,000.28/137,377.27
  6. Step 6: Final answer
    x = 147,487.22

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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.