Home / 103,085.96-142,256.79-57,763.80

Finding the Fourth Proportional to 103,085.96, 142,256.79 and 57,763.80

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Solution

The fourth proportional to 103,085.96, 142,256.79 and 57,763.80 is: 79,713.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,085.96 : 142,256.79 = 57,763.80 : x
  2. Step 2: Convert to fraction form
    103,085.96/142,256.79 = 57,763.80/x
  3. Step 3: Cross multiply
    103,085.96x = 142,256.79 × 57,763.80
  4. Step 4: Simplify right side
    103,085.96x = 8,217,292,766.20
  5. Step 5: Solve for x
    x = 8,217,292,766.20/103,085.96
  6. Step 6: Final answer
    x = 79,713.02

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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.