Home / 147,123.20-203,024.16-80,055.36

Finding the Fourth Proportional to 147,123.20, 203,024.16 and 80,055.36

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Solution

The fourth proportional to 147,123.20, 203,024.16 and 80,055.36 is: 110,473.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,123.20 : 203,024.16 = 80,055.36 : x
  2. Step 2: Convert to fraction form
    147,123.20/203,024.16 = 80,055.36/x
  3. Step 3: Cross multiply
    147,123.20x = 203,024.16 × 80,055.36
  4. Step 4: Simplify right side
    147,123.20x = 16,253,172,217.50
  5. Step 5: Solve for x
    x = 16,253,172,217.50/147,123.20
  6. Step 6: Final answer
    x = 110,473.21

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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.