Home / 124,990.13-187,504.74-40,730.73

Finding the Fourth Proportional to 124,990.13, 187,504.74 and 40,730.73

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Solution

The fourth proportional to 124,990.13, 187,504.74 and 40,730.73 is: 61,102.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,990.13 : 187,504.74 = 40,730.73 : x
  2. Step 2: Convert to fraction form
    124,990.13/187,504.74 = 40,730.73/x
  3. Step 3: Cross multiply
    124,990.13x = 187,504.74 × 40,730.73
  4. Step 4: Simplify right side
    124,990.13x = 7,637,204,938.66
  5. Step 5: Solve for x
    x = 7,637,204,938.66/124,990.13
  6. Step 6: Final answer
    x = 61,102.47

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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.