Home / 97,828.80-146,743.20-91,219.20

Finding the Fourth Proportional to 97,828.80, 146,743.20 and 91,219.20

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Solution

The fourth proportional to 97,828.80, 146,743.20 and 91,219.20 is: 136,828.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,828.80 : 146,743.20 = 91,219.20 : x
  2. Step 2: Convert to fraction form
    97,828.80/146,743.20 = 91,219.20/x
  3. Step 3: Cross multiply
    97,828.80x = 146,743.20 × 91,219.20
  4. Step 4: Simplify right side
    97,828.80x = 13,385,797,309.44
  5. Step 5: Solve for x
    x = 13,385,797,309.44/97,828.80
  6. Step 6: Final answer
    x = 136,828.80

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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.