Home / 112,780.22-155,637.96-61,793.04

Finding the Fourth Proportional to 112,780.22, 155,637.96 and 61,793.04

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Solution

The fourth proportional to 112,780.22, 155,637.96 and 61,793.04 is: 85,275.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,780.22 : 155,637.96 = 61,793.04 : x
  2. Step 2: Convert to fraction form
    112,780.22/155,637.96 = 61,793.04/x
  3. Step 3: Cross multiply
    112,780.22x = 155,637.96 × 61,793.04
  4. Step 4: Simplify right side
    112,780.22x = 9,617,343,039.72
  5. Step 5: Solve for x
    x = 9,617,343,039.72/112,780.22
  6. Step 6: Final answer
    x = 85,275.09

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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.