Home / 115,338.13-172,945.53-59,155.31

Finding the Fourth Proportional to 115,338.13, 172,945.53 and 59,155.31

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Solution

The fourth proportional to 115,338.13, 172,945.53 and 59,155.31 is: 88,701.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,338.13 : 172,945.53 = 59,155.31 : x
  2. Step 2: Convert to fraction form
    115,338.13/172,945.53 = 59,155.31/x
  3. Step 3: Cross multiply
    115,338.13x = 172,945.53 × 59,155.31
  4. Step 4: Simplify right side
    115,338.13x = 10,230,646,872.63
  5. Step 5: Solve for x
    x = 10,230,646,872.63/115,338.13
  6. Step 6: Final answer
    x = 88,701.34

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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.