Home / 124,870.10-187,305.15-40,638.20

Finding the Fourth Proportional to 124,870.10, 187,305.15 and 40,638.20

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Solution

The fourth proportional to 124,870.10, 187,305.15 and 40,638.20 is: 60,957.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,870.10 : 187,305.15 = 40,638.20 : x
  2. Step 2: Convert to fraction form
    124,870.10/187,305.15 = 40,638.20/x
  3. Step 3: Cross multiply
    124,870.10x = 187,305.15 × 40,638.20
  4. Step 4: Simplify right side
    124,870.10x = 7,611,744,146.73
  5. Step 5: Solve for x
    x = 7,611,744,146.73/124,870.10
  6. Step 6: Final answer
    x = 60,957.30

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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.