Home / 142,282.81-196,391.18-93,920.04

Finding the Fourth Proportional to 142,282.81, 196,391.18 and 93,920.04

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Solution

The fourth proportional to 142,282.81, 196,391.18 and 93,920.04 is: 129,636.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,282.81 : 196,391.18 = 93,920.04 : x
  2. Step 2: Convert to fraction form
    142,282.81/196,391.18 = 93,920.04/x
  3. Step 3: Cross multiply
    142,282.81x = 196,391.18 × 93,920.04
  4. Step 4: Simplify right side
    142,282.81x = 18,445,067,481.25
  5. Step 5: Solve for x
    x = 18,445,067,481.25/142,282.81
  6. Step 6: Final answer
    x = 129,636.65

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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.