Home / 103,512.78-142,847.04-63,220.95

Finding the Fourth Proportional to 103,512.78, 142,847.04 and 63,220.95

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Solution

The fourth proportional to 103,512.78, 142,847.04 and 63,220.95 is: 87,244.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,512.78 : 142,847.04 = 63,220.95 : x
  2. Step 2: Convert to fraction form
    103,512.78/142,847.04 = 63,220.95/x
  3. Step 3: Cross multiply
    103,512.78x = 142,847.04 × 63,220.95
  4. Step 4: Simplify right side
    103,512.78x = 9,030,925,573.49
  5. Step 5: Solve for x
    x = 9,030,925,573.49/103,512.78
  6. Step 6: Final answer
    x = 87,244.55

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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.