Home / 124,719.42-172,106.38-68,119.86

Finding the Fourth Proportional to 124,719.42, 172,106.38 and 68,119.86

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Solution

The fourth proportional to 124,719.42, 172,106.38 and 68,119.86 is: 94,001.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,719.42 : 172,106.38 = 68,119.86 : x
  2. Step 2: Convert to fraction form
    124,719.42/172,106.38 = 68,119.86/x
  3. Step 3: Cross multiply
    124,719.42x = 172,106.38 × 68,119.86
  4. Step 4: Simplify right side
    124,719.42x = 11,723,862,510.71
  5. Step 5: Solve for x
    x = 11,723,862,510.71/124,719.42
  6. Step 6: Final answer
    x = 94,001.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.