Home / 103,436.60-155,118.45-36,878.90

Finding the Fourth Proportional to 103,436.60, 155,118.45 and 36,878.90

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Solution

The fourth proportional to 103,436.60, 155,118.45 and 36,878.90 is: 55,305.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,436.60 : 155,118.45 = 36,878.90 : x
  2. Step 2: Convert to fraction form
    103,436.60/155,118.45 = 36,878.90/x
  3. Step 3: Cross multiply
    103,436.60x = 155,118.45 × 36,878.90
  4. Step 4: Simplify right side
    103,436.60x = 5,720,597,805.71
  5. Step 5: Solve for x
    x = 5,720,597,805.71/103,436.60
  6. Step 6: Final answer
    x = 55,305.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.