Home / 127,457.20-175,927.91-79,073.88

Finding the Fourth Proportional to 127,457.20, 175,927.91 and 79,073.88

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Solution

The fourth proportional to 127,457.20, 175,927.91 and 79,073.88 is: 109,144.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,457.20 : 175,927.91 = 79,073.88 : x
  2. Step 2: Convert to fraction form
    127,457.20/175,927.91 = 79,073.88/x
  3. Step 3: Cross multiply
    127,457.20x = 175,927.91 × 79,073.88
  4. Step 4: Simplify right side
    127,457.20x = 13,911,302,443.99
  5. Step 5: Solve for x
    x = 13,911,302,443.99/127,457.20
  6. Step 6: Final answer
    x = 109,144.89

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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.