Home / 131,291.16-196,888.10-103,265.70

Finding the Fourth Proportional to 131,291.16, 196,888.10 and 103,265.70

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Solution

The fourth proportional to 131,291.16, 196,888.10 and 103,265.70 is: 154,860.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,291.16 : 196,888.10 = 103,265.70 : x
  2. Step 2: Convert to fraction form
    131,291.16/196,888.10 = 103,265.70/x
  3. Step 3: Cross multiply
    131,291.16x = 196,888.10 × 103,265.70
  4. Step 4: Simplify right side
    131,291.16x = 20,331,787,468.17
  5. Step 5: Solve for x
    x = 20,331,787,468.17/131,291.16
  6. Step 6: Final answer
    x = 154,860.29

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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.