Home / 115,007.76-172,510.20-40,127.76

Finding the Fourth Proportional to 115,007.76, 172,510.20 and 40,127.76

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Solution

The fourth proportional to 115,007.76, 172,510.20 and 40,127.76 is: 60,191.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,007.76 : 172,510.20 = 40,127.76 : x
  2. Step 2: Convert to fraction form
    115,007.76/172,510.20 = 40,127.76/x
  3. Step 3: Cross multiply
    115,007.76x = 172,510.20 × 40,127.76
  4. Step 4: Simplify right side
    115,007.76x = 6,922,447,903.15
  5. Step 5: Solve for x
    x = 6,922,447,903.15/115,007.76
  6. Step 6: Final answer
    x = 60,191.14

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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.