Home / 97,948.80-146,750.40-80,323.20

Finding the Fourth Proportional to 97,948.80, 146,750.40 and 80,323.20

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Solution

The fourth proportional to 97,948.80, 146,750.40 and 80,323.20 is: 120,343.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,948.80 : 146,750.40 = 80,323.20 : x
  2. Step 2: Convert to fraction form
    97,948.80/146,750.40 = 80,323.20/x
  3. Step 3: Cross multiply
    97,948.80x = 146,750.40 × 80,323.20
  4. Step 4: Simplify right side
    97,948.80x = 11,787,461,729.28
  5. Step 5: Solve for x
    x = 11,787,461,729.28/97,948.80
  6. Step 6: Final answer
    x = 120,343.09

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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.