Home / 103,717.68-143,132.22-61,276.11

Finding the Fourth Proportional to 103,717.68, 143,132.22 and 61,276.11

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Solution

The fourth proportional to 103,717.68, 143,132.22 and 61,276.11 is: 84,562.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,717.68 : 143,132.22 = 61,276.11 : x
  2. Step 2: Convert to fraction form
    103,717.68/143,132.22 = 61,276.11/x
  3. Step 3: Cross multiply
    103,717.68x = 143,132.22 × 61,276.11
  4. Step 4: Simplify right side
    103,717.68x = 8,770,585,657.26
  5. Step 5: Solve for x
    x = 8,770,585,657.26/103,717.68
  6. Step 6: Final answer
    x = 84,562.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.