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Finding the Fourth Proportional to 124,720.71, 187,081.07 and 45,800.79

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Solution

The fourth proportional to 124,720.71, 187,081.07 and 45,800.79 is: 68,701.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,720.71 : 187,081.07 = 45,800.79 : x
  2. Step 2: Convert to fraction form
    124,720.71/187,081.07 = 45,800.79/x
  3. Step 3: Cross multiply
    124,720.71x = 187,081.07 × 45,800.79
  4. Step 4: Simplify right side
    124,720.71x = 8,568,460,571.04
  5. Step 5: Solve for x
    x = 8,568,460,571.04/124,720.71
  6. Step 6: Final answer
    x = 68,701.19

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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.