Home / 127,167.78-175,509.79-76,182.66

Finding the Fourth Proportional to 127,167.78, 175,509.79 and 76,182.66

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Solution

The fourth proportional to 127,167.78, 175,509.79 and 76,182.66 is: 105,143.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,167.78 : 175,509.79 = 76,182.66 : x
  2. Step 2: Convert to fraction form
    127,167.78/175,509.79 = 76,182.66/x
  3. Step 3: Cross multiply
    127,167.78x = 175,509.79 × 76,182.66
  4. Step 4: Simplify right side
    127,167.78x = 13,370,802,658.24
  5. Step 5: Solve for x
    x = 13,370,802,658.24/127,167.78
  6. Step 6: Final answer
    x = 105,143.01

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1.5x scale

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.