Home / 124,871.10-187,306.65-40,639.20

Finding the Fourth Proportional to 124,871.10, 187,306.65 and 40,639.20

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Solution

The fourth proportional to 124,871.10, 187,306.65 and 40,639.20 is: 60,958.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,871.10 : 187,306.65 = 40,639.20 : x
  2. Step 2: Convert to fraction form
    124,871.10/187,306.65 = 40,639.20/x
  3. Step 3: Cross multiply
    124,871.10x = 187,306.65 × 40,639.20
  4. Step 4: Simplify right side
    124,871.10x = 7,611,992,410.68
  5. Step 5: Solve for x
    x = 7,611,992,410.68/124,871.10
  6. Step 6: Final answer
    x = 60,958.80

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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.