Home / 107,968.81-148,967.05-69,729.97

Finding the Fourth Proportional to 107,968.81, 148,967.05 and 69,729.97

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Solution

The fourth proportional to 107,968.81, 148,967.05 and 69,729.97 is: 96,208.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,968.81 : 148,967.05 = 69,729.97 : x
  2. Step 2: Convert to fraction form
    107,968.81/148,967.05 = 69,729.97/x
  3. Step 3: Cross multiply
    107,968.81x = 148,967.05 × 69,729.97
  4. Step 4: Simplify right side
    107,968.81x = 10,387,467,927.49
  5. Step 5: Solve for x
    x = 10,387,467,927.49/107,968.81
  6. Step 6: Final answer
    x = 96,208.04

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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.