Home / 124,870.60-187,305.90-40,638.70

Finding the Fourth Proportional to 124,870.60, 187,305.90 and 40,638.70

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Solution

The fourth proportional to 124,870.60, 187,305.90 and 40,638.70 is: 60,958.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,870.60 : 187,305.90 = 40,638.70 : x
  2. Step 2: Convert to fraction form
    124,870.60/187,305.90 = 40,638.70/x
  3. Step 3: Cross multiply
    124,870.60x = 187,305.90 × 40,638.70
  4. Step 4: Simplify right side
    124,870.60x = 7,611,868,278.33
  5. Step 5: Solve for x
    x = 7,611,868,278.33/124,870.60
  6. Step 6: Final answer
    x = 60,958.05

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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.