Home / 102,864.15-141,965.60-57,544.65

Finding the Fourth Proportional to 102,864.15, 141,965.60 and 57,544.65

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Solution

The fourth proportional to 102,864.15, 141,965.60 and 57,544.65 is: 79,418.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,864.15 : 141,965.60 = 57,544.65 : x
  2. Step 2: Convert to fraction form
    102,864.15/141,965.60 = 57,544.65/x
  3. Step 3: Cross multiply
    102,864.15x = 141,965.60 × 57,544.65
  4. Step 4: Simplify right side
    102,864.15x = 8,169,360,476.32
  5. Step 5: Solve for x
    x = 8,169,360,476.32/102,864.15
  6. Step 6: Final answer
    x = 79,418.93

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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.