Home / 102,886.45-141,975.20-57,560.88

Finding the Fourth Proportional to 102,886.45, 141,975.20 and 57,560.88

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Solution

The fourth proportional to 102,886.45, 141,975.20 and 57,560.88 is: 79,429.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,886.45 : 141,975.20 = 57,560.88 : x
  2. Step 2: Convert to fraction form
    102,886.45/141,975.20 = 57,560.88/x
  3. Step 3: Cross multiply
    102,886.45x = 141,975.20 × 57,560.88
  4. Step 4: Simplify right side
    102,886.45x = 8,172,217,450.18
  5. Step 5: Solve for x
    x = 8,172,217,450.18/102,886.45
  6. Step 6: Final answer
    x = 79,429.48

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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.