Home / 123,859.03-170,929.46-70,142.89

Finding the Fourth Proportional to 123,859.03, 170,929.46 and 70,142.89

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Solution

The fourth proportional to 123,859.03, 170,929.46 and 70,142.89 is: 96,799.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,859.03 : 170,929.46 = 70,142.89 : x
  2. Step 2: Convert to fraction form
    123,859.03/170,929.46 = 70,142.89/x
  3. Step 3: Cross multiply
    123,859.03x = 170,929.46 × 70,142.89
  4. Step 4: Simplify right side
    123,859.03x = 11,989,485,105.18
  5. Step 5: Solve for x
    x = 11,989,485,105.18/123,859.03
  6. Step 6: Final answer
    x = 96,799.45

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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.