Home / 127,911.50-176,587.08-76,935.61

Finding the Fourth Proportional to 127,911.50, 176,587.08 and 76,935.61

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Solution

The fourth proportional to 127,911.50, 176,587.08 and 76,935.61 is: 106,212.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,911.50 : 176,587.08 = 76,935.61 : x
  2. Step 2: Convert to fraction form
    127,911.50/176,587.08 = 76,935.61/x
  3. Step 3: Cross multiply
    127,911.50x = 176,587.08 × 76,935.61
  4. Step 4: Simplify right side
    127,911.50x = 13,585,834,717.92
  5. Step 5: Solve for x
    x = 13,585,834,717.92/127,911.50
  6. Step 6: Final answer
    x = 106,212.77

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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.