Home / 127,319.75-175,717.46-77,019.11

Finding the Fourth Proportional to 127,319.75, 175,717.46 and 77,019.11

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Solution

The fourth proportional to 127,319.75, 175,717.46 and 77,019.11 is: 106,296.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,319.75 : 175,717.46 = 77,019.11 : x
  2. Step 2: Convert to fraction form
    127,319.75/175,717.46 = 77,019.11/x
  3. Step 3: Cross multiply
    127,319.75x = 175,717.46 × 77,019.11
  4. Step 4: Simplify right side
    127,319.75x = 13,533,602,380.66
  5. Step 5: Solve for x
    x = 13,533,602,380.66/127,319.75
  6. Step 6: Final answer
    x = 106,296.17

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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.