Home / 102,436.04-141,348.30-57,103.04

Finding the Fourth Proportional to 102,436.04, 141,348.30 and 57,103.04

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Solution

The fourth proportional to 102,436.04, 141,348.30 and 57,103.04 is: 78,794.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,436.04 : 141,348.30 = 57,103.04 : x
  2. Step 2: Convert to fraction form
    102,436.04/141,348.30 = 57,103.04/x
  3. Step 3: Cross multiply
    102,436.04x = 141,348.30 × 57,103.04
  4. Step 4: Simplify right side
    102,436.04x = 8,071,417,628.83
  5. Step 5: Solve for x
    x = 8,071,417,628.83/102,436.04
  6. Step 6: Final answer
    x = 78,794.71

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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.