Home / 102,019.20-140,783.68-56,696.04

Finding the Fourth Proportional to 102,019.20, 140,783.68 and 56,696.04

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Solution

The fourth proportional to 102,019.20, 140,783.68 and 56,696.04 is: 78,238.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,019.20 : 140,783.68 = 56,696.04 : x
  2. Step 2: Convert to fraction form
    102,019.20/140,783.68 = 56,696.04/x
  3. Step 3: Cross multiply
    102,019.20x = 140,783.68 × 56,696.04
  4. Step 4: Simplify right side
    102,019.20x = 7,981,877,152.63
  5. Step 5: Solve for x
    x = 7,981,877,152.63/102,019.20
  6. Step 6: Final answer
    x = 78,238.97

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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.