Home / 97,729.20-146,642.40-38,566.80

Finding the Fourth Proportional to 97,729.20, 146,642.40 and 38,566.80

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Solution

The fourth proportional to 97,729.20, 146,642.40 and 38,566.80 is: 57,869.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,729.20 : 146,642.40 = 38,566.80 : x
  2. Step 2: Convert to fraction form
    97,729.20/146,642.40 = 38,566.80/x
  3. Step 3: Cross multiply
    97,729.20x = 146,642.40 × 38,566.80
  4. Step 4: Simplify right side
    97,729.20x = 5,655,528,112.32
  5. Step 5: Solve for x
    x = 5,655,528,112.32/97,729.20
  6. Step 6: Final answer
    x = 57,869.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.