Home / 127,920.65-191,881.42-39,173.76

Finding the Fourth Proportional to 127,920.65, 191,881.42 and 39,173.76

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Solution

The fourth proportional to 127,920.65, 191,881.42 and 39,173.76 is: 58,760.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,920.65 : 191,881.42 = 39,173.76 : x
  2. Step 2: Convert to fraction form
    127,920.65/191,881.42 = 39,173.76/x
  3. Step 3: Cross multiply
    127,920.65x = 191,881.42 × 39,173.76
  4. Step 4: Simplify right side
    127,920.65x = 7,516,716,597.60
  5. Step 5: Solve for x
    x = 7,516,716,597.60/127,920.65
  6. Step 6: Final answer
    x = 58,760.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.