Home / 131,930.74-182,032.70-78,228.96

Finding the Fourth Proportional to 131,930.74, 182,032.70 and 78,228.96

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Solution

The fourth proportional to 131,930.74, 182,032.70 and 78,228.96 is: 107,937.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,930.74 : 182,032.70 = 78,228.96 : x
  2. Step 2: Convert to fraction form
    131,930.74/182,032.70 = 78,228.96/x
  3. Step 3: Cross multiply
    131,930.74x = 182,032.70 × 78,228.96
  4. Step 4: Simplify right side
    131,930.74x = 14,240,228,806.99
  5. Step 5: Solve for x
    x = 14,240,228,806.99/131,930.74
  6. Step 6: Final answer
    x = 107,937.16

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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.