Home / 137,471.18-189,707.06-80,106.84

Finding the Fourth Proportional to 137,471.18, 189,707.06 and 80,106.84

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Solution

The fourth proportional to 137,471.18, 189,707.06 and 80,106.84 is: 110,545.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,471.18 : 189,707.06 = 80,106.84 : x
  2. Step 2: Convert to fraction form
    137,471.18/189,707.06 = 80,106.84/x
  3. Step 3: Cross multiply
    137,471.18x = 189,707.06 × 80,106.84
  4. Step 4: Simplify right side
    137,471.18x = 15,196,833,302.56
  5. Step 5: Solve for x
    x = 15,196,833,302.56/137,471.18
  6. Step 6: Final answer
    x = 110,545.60

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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.