Home / 102,178.43-141,006.23-56,859.33

Finding the Fourth Proportional to 102,178.43, 141,006.23 and 56,859.33

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Solution

The fourth proportional to 102,178.43, 141,006.23 and 56,859.33 is: 78,465.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,178.43 : 141,006.23 = 56,859.33 : x
  2. Step 2: Convert to fraction form
    102,178.43/141,006.23 = 56,859.33/x
  3. Step 3: Cross multiply
    102,178.43x = 141,006.23 × 56,859.33
  4. Step 4: Simplify right side
    102,178.43x = 8,017,519,479.33
  5. Step 5: Solve for x
    x = 8,017,519,479.33/102,178.43
  6. Step 6: Final answer
    x = 78,465.87

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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.