Home / 83,575.18-115,206.46-70,781.23

Finding the Fourth Proportional to 83,575.18, 115,206.46 and 70,781.23

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Solution

The fourth proportional to 83,575.18, 115,206.46 and 70,781.23 is: 97,570.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,575.18 : 115,206.46 = 70,781.23 : x
  2. Step 2: Convert to fraction form
    83,575.18/115,206.46 = 70,781.23/x
  3. Step 3: Cross multiply
    83,575.18x = 115,206.46 × 70,781.23
  4. Step 4: Simplify right side
    83,575.18x = 8,154,454,942.75
  5. Step 5: Solve for x
    x = 8,154,454,942.75/83,575.18
  6. Step 6: Final answer
    x = 97,570.29

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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.