Home / 102,104.43-140,806.35-61,262.20

Finding the Fourth Proportional to 102,104.43, 140,806.35 and 61,262.20

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Solution

The fourth proportional to 102,104.43, 140,806.35 and 61,262.20 is: 84,483.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,104.43 : 140,806.35 = 61,262.20 : x
  2. Step 2: Convert to fraction form
    102,104.43/140,806.35 = 61,262.20/x
  3. Step 3: Cross multiply
    102,104.43x = 140,806.35 × 61,262.20
  4. Step 4: Simplify right side
    102,104.43x = 8,626,106,774.97
  5. Step 5: Solve for x
    x = 8,626,106,774.97/102,104.43
  6. Step 6: Final answer
    x = 84,483.18

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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.