Home / 127,317.88-175,713.91-76,358.65

Finding the Fourth Proportional to 127,317.88, 175,713.91 and 76,358.65

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Solution

The fourth proportional to 127,317.88, 175,713.91 and 76,358.65 is: 105,384.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,317.88 : 175,713.91 = 76,358.65 : x
  2. Step 2: Convert to fraction form
    127,317.88/175,713.91 = 76,358.65/x
  3. Step 3: Cross multiply
    127,317.88x = 175,713.91 × 76,358.65
  4. Step 4: Simplify right side
    127,317.88x = 13,417,276,653.10
  5. Step 5: Solve for x
    x = 13,417,276,653.10/127,317.88
  6. Step 6: Final answer
    x = 105,384.08

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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.