Home / 103,336.80-141,377.70-102,894.48

Finding the Fourth Proportional to 103,336.80, 141,377.70 and 102,894.48

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Solution

The fourth proportional to 103,336.80, 141,377.70 and 102,894.48 is: 140,772.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,336.80 : 141,377.70 = 102,894.48 : x
  2. Step 2: Convert to fraction form
    103,336.80/141,377.70 = 102,894.48/x
  3. Step 3: Cross multiply
    103,336.80x = 141,377.70 × 102,894.48
  4. Step 4: Simplify right side
    103,336.80x = 14,546,984,925.10
  5. Step 5: Solve for x
    x = 14,546,984,925.10/103,336.80
  6. Step 6: Final answer
    x = 140,772.55

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.