Home / 127,479.88-191,241.69-38,742.36

Finding the Fourth Proportional to 127,479.88, 191,241.69 and 38,742.36

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Solution

The fourth proportional to 127,479.88, 191,241.69 and 38,742.36 is: 58,120.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,479.88 : 191,241.69 = 38,742.36 : x
  2. Step 2: Convert to fraction form
    127,479.88/191,241.69 = 38,742.36/x
  3. Step 3: Cross multiply
    127,479.88x = 191,241.69 × 38,742.36
  4. Step 4: Simplify right side
    127,479.88x = 7,409,154,400.99
  5. Step 5: Solve for x
    x = 7,409,154,400.99/127,479.88
  6. Step 6: Final answer
    x = 58,120.19

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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.