Home / 198,470.40-273,869.36-112,412.18

Finding the Fourth Proportional to 198,470.40, 273,869.36 and 112,412.18

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Solution

The fourth proportional to 198,470.40, 273,869.36 and 112,412.18 is: 155,117.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,470.40 : 273,869.36 = 112,412.18 : x
  2. Step 2: Convert to fraction form
    198,470.40/273,869.36 = 112,412.18/x
  3. Step 3: Cross multiply
    198,470.40x = 273,869.36 × 112,412.18
  4. Step 4: Simplify right side
    198,470.40x = 30,786,251,792.80
  5. Step 5: Solve for x
    x = 30,786,251,792.80/198,470.40
  6. Step 6: Final answer
    x = 155,117.60

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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.