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Finding the Fourth Proportional to 103,504.52, 142,849.35 and 63,209.72

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Solution

The fourth proportional to 103,504.52, 142,849.35 and 63,209.72 is: 87,237.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,504.52 : 142,849.35 = 63,209.72 : x
  2. Step 2: Convert to fraction form
    103,504.52/142,849.35 = 63,209.72/x
  3. Step 3: Cross multiply
    103,504.52x = 142,849.35 × 63,209.72
  4. Step 4: Simplify right side
    103,504.52x = 9,029,466,701.44
  5. Step 5: Solve for x
    x = 9,029,466,701.44/103,504.52
  6. Step 6: Final answer
    x = 87,237.42

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1.5x scale

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.