Home / 115,220.05-172,711.31-44,123.28

Finding the Fourth Proportional to 115,220.05, 172,711.31 and 44,123.28

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Solution

The fourth proportional to 115,220.05, 172,711.31 and 44,123.28 is: 66,139.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,220.05 : 172,711.31 = 44,123.28 : x
  2. Step 2: Convert to fraction form
    115,220.05/172,711.31 = 44,123.28/x
  3. Step 3: Cross multiply
    115,220.05x = 172,711.31 × 44,123.28
  4. Step 4: Simplify right side
    115,220.05x = 7,620,588,622.01
  5. Step 5: Solve for x
    x = 7,620,588,622.01/115,220.05
  6. Step 6: Final answer
    x = 66,139.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.