Home / 102,803.74-141,876.22-57,480.80

Finding the Fourth Proportional to 102,803.74, 141,876.22 and 57,480.80

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Solution

The fourth proportional to 102,803.74, 141,876.22 and 57,480.80 is: 79,327.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,803.74 : 141,876.22 = 57,480.80 : x
  2. Step 2: Convert to fraction form
    102,803.74/141,876.22 = 57,480.80/x
  3. Step 3: Cross multiply
    102,803.74x = 141,876.22 × 57,480.80
  4. Step 4: Simplify right side
    102,803.74x = 8,155,158,626.58
  5. Step 5: Solve for x
    x = 8,155,158,626.58/102,803.74
  6. Step 6: Final answer
    x = 79,327.45

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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.