Home / 140,426.12-193,788.15-76,763.94

Finding the Fourth Proportional to 140,426.12, 193,788.15 and 76,763.94

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Solution

The fourth proportional to 140,426.12, 193,788.15 and 76,763.94 is: 105,934.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,426.12 : 193,788.15 = 76,763.94 : x
  2. Step 2: Convert to fraction form
    140,426.12/193,788.15 = 76,763.94/x
  3. Step 3: Cross multiply
    140,426.12x = 193,788.15 × 76,763.94
  4. Step 4: Simplify right side
    140,426.12x = 14,875,940,904.74
  5. Step 5: Solve for x
    x = 14,875,940,904.74/140,426.12
  6. Step 6: Final answer
    x = 105,934.29

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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.