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Finding the Fourth Proportional to 103,757.60, 143,763.75 and 101,515.52

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Solution

The fourth proportional to 103,757.60, 143,763.75 and 101,515.52 is: 140,657.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,757.60 : 143,763.75 = 101,515.52 : x
  2. Step 2: Convert to fraction form
    103,757.60/143,763.75 = 101,515.52/x
  3. Step 3: Cross multiply
    103,757.60x = 143,763.75 × 101,515.52
  4. Step 4: Simplify right side
    103,757.60x = 14,594,251,838.40
  5. Step 5: Solve for x
    x = 14,594,251,838.40/103,757.60
  6. Step 6: Final answer
    x = 140,657.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.