Home / 127,929.20-176,586.36-76,970.48

Finding the Fourth Proportional to 127,929.20, 176,586.36 and 76,970.48

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Solution

The fourth proportional to 127,929.20, 176,586.36 and 76,970.48 is: 106,245.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,929.20 : 176,586.36 = 76,970.48 : x
  2. Step 2: Convert to fraction form
    127,929.20/176,586.36 = 76,970.48/x
  3. Step 3: Cross multiply
    127,929.20x = 176,586.36 × 76,970.48
  4. Step 4: Simplify right side
    127,929.20x = 13,591,936,890.65
  5. Step 5: Solve for x
    x = 13,591,936,890.65/127,929.20
  6. Step 6: Final answer
    x = 106,245.77

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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.