Home / 115,790.75-173,686.13-28,238.75

Finding the Fourth Proportional to 115,790.75, 173,686.13 and 28,238.75

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Solution

The fourth proportional to 115,790.75, 173,686.13 and 28,238.75 is: 42,358.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,790.75 : 173,686.13 = 28,238.75 : x
  2. Step 2: Convert to fraction form
    115,790.75/173,686.13 = 28,238.75/x
  3. Step 3: Cross multiply
    115,790.75x = 173,686.13 × 28,238.75
  4. Step 4: Simplify right side
    115,790.75x = 4,904,679,203.54
  5. Step 5: Solve for x
    x = 4,904,679,203.54/115,790.75
  6. Step 6: Final answer
    x = 42,358.13

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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.