Home / 137,104.32-189,125.10-80,504.76

Finding the Fourth Proportional to 137,104.32, 189,125.10 and 80,504.76

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Solution

The fourth proportional to 137,104.32, 189,125.10 and 80,504.76 is: 111,050.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,104.32 : 189,125.10 = 80,504.76 : x
  2. Step 2: Convert to fraction form
    137,104.32/189,125.10 = 80,504.76/x
  3. Step 3: Cross multiply
    137,104.32x = 189,125.10 × 80,504.76
  4. Step 4: Simplify right side
    137,104.32x = 15,225,470,785.48
  5. Step 5: Solve for x
    x = 15,225,470,785.48/137,104.32
  6. Step 6: Final answer
    x = 111,050.26

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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.