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Finding the Fourth Proportional to 127,980.65, 176,624.46 and 70,625.36

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Solution

The fourth proportional to 127,980.65, 176,624.46 and 70,625.36 is: 97,469.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,980.65 : 176,624.46 = 70,625.36 : x
  2. Step 2: Convert to fraction form
    127,980.65/176,624.46 = 70,625.36/x
  3. Step 3: Cross multiply
    127,980.65x = 176,624.46 × 70,625.36
  4. Step 4: Simplify right side
    127,980.65x = 12,474,164,836.06
  5. Step 5: Solve for x
    x = 12,474,164,836.06/127,980.65
  6. Step 6: Final answer
    x = 97,469.15

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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.