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Finding the Fourth Proportional to 124,959.66, 187,439.34 and 40,719.69

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Solution

The fourth proportional to 124,959.66, 187,439.34 and 40,719.69 is: 61,079.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,959.66 : 187,439.34 = 40,719.69 : x
  2. Step 2: Convert to fraction form
    124,959.66/187,439.34 = 40,719.69/x
  3. Step 3: Cross multiply
    124,959.66x = 187,439.34 × 40,719.69
  4. Step 4: Simplify right side
    124,959.66x = 7,632,471,818.60
  5. Step 5: Solve for x
    x = 7,632,471,818.60/124,959.66
  6. Step 6: Final answer
    x = 61,079.49

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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.