Home / 128,233.20-176,846.76-106,793.76

Finding the Fourth Proportional to 128,233.20, 176,846.76 and 106,793.76

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Solution

The fourth proportional to 128,233.20, 176,846.76 and 106,793.76 is: 147,279.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,233.20 : 176,846.76 = 106,793.76 : x
  2. Step 2: Convert to fraction form
    128,233.20/176,846.76 = 106,793.76/x
  3. Step 3: Cross multiply
    128,233.20x = 176,846.76 × 106,793.76
  4. Step 4: Simplify right side
    128,233.20x = 18,886,130,444.22
  5. Step 5: Solve for x
    x = 18,886,130,444.22/128,233.20
  6. Step 6: Final answer
    x = 147,279.57

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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.