Home / 102,843.17-141,920.73-57,521.24

Finding the Fourth Proportional to 102,843.17, 141,920.73 and 57,521.24

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Solution

The fourth proportional to 102,843.17, 141,920.73 and 57,521.24 is: 79,377.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,843.17 : 141,920.73 = 57,521.24 : x
  2. Step 2: Convert to fraction form
    102,843.17/141,920.73 = 57,521.24/x
  3. Step 3: Cross multiply
    102,843.17x = 141,920.73 × 57,521.24
  4. Step 4: Simplify right side
    102,843.17x = 8,163,455,661.70
  5. Step 5: Solve for x
    x = 8,163,455,661.70/102,843.17
  6. Step 6: Final answer
    x = 79,377.72

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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.