Home / 102,868.32-141,956.72-57,547.36

Finding the Fourth Proportional to 102,868.32, 141,956.72 and 57,547.36

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Solution

The fourth proportional to 102,868.32, 141,956.72 and 57,547.36 is: 79,414.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,868.32 : 141,956.72 = 57,547.36 : x
  2. Step 2: Convert to fraction form
    102,868.32/141,956.72 = 57,547.36/x
  3. Step 3: Cross multiply
    102,868.32x = 141,956.72 × 57,547.36
  4. Step 4: Simplify right side
    102,868.32x = 8,169,234,470.26
  5. Step 5: Solve for x
    x = 8,169,234,470.26/102,868.32
  6. Step 6: Final answer
    x = 79,414.48

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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.