Home / 102,841.58-141,921.72-57,520.34

Finding the Fourth Proportional to 102,841.58, 141,921.72 and 57,520.34

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Solution

The fourth proportional to 102,841.58, 141,921.72 and 57,520.34 is: 79,378.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,841.58 : 141,921.72 = 57,520.34 : x
  2. Step 2: Convert to fraction form
    102,841.58/141,921.72 = 57,520.34/x
  3. Step 3: Cross multiply
    102,841.58x = 141,921.72 × 57,520.34
  4. Step 4: Simplify right side
    102,841.58x = 8,163,385,726.89
  5. Step 5: Solve for x
    x = 8,163,385,726.89/102,841.58
  6. Step 6: Final answer
    x = 79,378.26

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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.