Home / 111,708.28-154,156.66-60,719.74

Finding the Fourth Proportional to 111,708.28, 154,156.66 and 60,719.74

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Solution

The fourth proportional to 111,708.28, 154,156.66 and 60,719.74 is: 83,792.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,708.28 : 154,156.66 = 60,719.74 : x
  2. Step 2: Convert to fraction form
    111,708.28/154,156.66 = 60,719.74/x
  3. Step 3: Cross multiply
    111,708.28x = 154,156.66 × 60,719.74
  4. Step 4: Simplify right side
    111,708.28x = 9,360,352,314.47
  5. Step 5: Solve for x
    x = 9,360,352,314.47/111,708.28
  6. Step 6: Final answer
    x = 83,792.82

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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.