Home / 115,107.87-172,688.51-36,220.04

Finding the Fourth Proportional to 115,107.87, 172,688.51 and 36,220.04

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Solution

The fourth proportional to 115,107.87, 172,688.51 and 36,220.04 is: 54,338.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,107.87 : 172,688.51 = 36,220.04 : x
  2. Step 2: Convert to fraction form
    115,107.87/172,688.51 = 36,220.04/x
  3. Step 3: Cross multiply
    115,107.87x = 172,688.51 × 36,220.04
  4. Step 4: Simplify right side
    115,107.87x = 6,254,785,585.80
  5. Step 5: Solve for x
    x = 6,254,785,585.80/115,107.87
  6. Step 6: Final answer
    x = 54,338.47

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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.