Home / 127,564.68-176,049.90-70,986.72

Finding the Fourth Proportional to 127,564.68, 176,049.90 and 70,986.72

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Solution

The fourth proportional to 127,564.68, 176,049.90 and 70,986.72 is: 97,967.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,564.68 : 176,049.90 = 70,986.72 : x
  2. Step 2: Convert to fraction form
    127,564.68/176,049.90 = 70,986.72/x
  3. Step 3: Cross multiply
    127,564.68x = 176,049.90 × 70,986.72
  4. Step 4: Simplify right side
    127,564.68x = 12,497,204,957.33
  5. Step 5: Solve for x
    x = 12,497,204,957.33/127,564.68
  6. Step 6: Final answer
    x = 97,967.60

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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.