Home / 103,880.75-143,331.02-63,043.97

Finding the Fourth Proportional to 103,880.75, 143,331.02 and 63,043.97

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Solution

The fourth proportional to 103,880.75, 143,331.02 and 63,043.97 is: 86,985.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,880.75 : 143,331.02 = 63,043.97 : x
  2. Step 2: Convert to fraction form
    103,880.75/143,331.02 = 63,043.97/x
  3. Step 3: Cross multiply
    103,880.75x = 143,331.02 × 63,043.97
  4. Step 4: Simplify right side
    103,880.75x = 9,036,156,209.73
  5. Step 5: Solve for x
    x = 9,036,156,209.73/103,880.75
  6. Step 6: Final answer
    x = 86,985.86

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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.