Home / 123,882.48-170,945.28-70,156.80

Finding the Fourth Proportional to 123,882.48, 170,945.28 and 70,156.80

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Solution

The fourth proportional to 123,882.48, 170,945.28 and 70,156.80 is: 96,809.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,882.48 : 170,945.28 = 70,156.80 : x
  2. Step 2: Convert to fraction form
    123,882.48/170,945.28 = 70,156.80/x
  3. Step 3: Cross multiply
    123,882.48x = 170,945.28 × 70,156.80
  4. Step 4: Simplify right side
    123,882.48x = 11,992,973,819.90
  5. Step 5: Solve for x
    x = 11,992,973,819.90/123,882.48
  6. Step 6: Final answer
    x = 96,809.28

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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.