Home / 127,355.48-175,754.17-76,376.51

Finding the Fourth Proportional to 127,355.48, 175,754.17 and 76,376.51

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Solution

The fourth proportional to 127,355.48, 175,754.17 and 76,376.51 is: 105,401.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,355.48 : 175,754.17 = 76,376.51 : x
  2. Step 2: Convert to fraction form
    127,355.48/175,754.17 = 76,376.51/x
  3. Step 3: Cross multiply
    127,355.48x = 175,754.17 × 76,376.51
  4. Step 4: Simplify right side
    127,355.48x = 13,423,490,122.55
  5. Step 5: Solve for x
    x = 13,423,490,122.55/127,355.48
  6. Step 6: Final answer
    x = 105,401.75

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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.