Home / 170,949.76-235,919.72-102,988.13

Finding the Fourth Proportional to 170,949.76, 235,919.72 and 102,988.13

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Solution

The fourth proportional to 170,949.76, 235,919.72 and 102,988.13 is: 142,129.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,949.76 : 235,919.72 = 102,988.13 : x
  2. Step 2: Convert to fraction form
    170,949.76/235,919.72 = 102,988.13/x
  3. Step 3: Cross multiply
    170,949.76x = 235,919.72 × 102,988.13
  4. Step 4: Simplify right side
    170,949.76x = 24,296,929,870.80
  5. Step 5: Solve for x
    x = 24,296,929,870.80/170,949.76
  6. Step 6: Final answer
    x = 142,129.07

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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.