Home / 115,024.92-172,243.62-91,685.40

Finding the Fourth Proportional to 115,024.92, 172,243.62 and 91,685.40

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Solution

The fourth proportional to 115,024.92, 172,243.62 and 91,685.40 is: 137,293.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,024.92 : 172,243.62 = 91,685.40 : x
  2. Step 2: Convert to fraction form
    115,024.92/172,243.62 = 91,685.40/x
  3. Step 3: Cross multiply
    115,024.92x = 172,243.62 × 91,685.40
  4. Step 4: Simplify right side
    115,024.92x = 15,792,225,197.15
  5. Step 5: Solve for x
    x = 15,792,225,197.15/115,024.92
  6. Step 6: Final answer
    x = 137,293.95

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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.