Home / 140,699.13-194,163.32-76,166.92

Finding the Fourth Proportional to 140,699.13, 194,163.32 and 76,166.92

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Solution

The fourth proportional to 140,699.13, 194,163.32 and 76,166.92 is: 105,109.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,699.13 : 194,163.32 = 76,166.92 : x
  2. Step 2: Convert to fraction form
    140,699.13/194,163.32 = 76,166.92/x
  3. Step 3: Cross multiply
    140,699.13x = 194,163.32 × 76,166.92
  4. Step 4: Simplify right side
    140,699.13x = 14,788,822,061.37
  5. Step 5: Solve for x
    x = 14,788,822,061.37/140,699.13
  6. Step 6: Final answer
    x = 105,109.55

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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.