Home / 102,962.40-154,443.60-63,391.20

Finding the Fourth Proportional to 102,962.40, 154,443.60 and 63,391.20

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Solution

The fourth proportional to 102,962.40, 154,443.60 and 63,391.20 is: 95,086.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,962.40 : 154,443.60 = 63,391.20 : x
  2. Step 2: Convert to fraction form
    102,962.40/154,443.60 = 63,391.20/x
  3. Step 3: Cross multiply
    102,962.40x = 154,443.60 × 63,391.20
  4. Step 4: Simplify right side
    102,962.40x = 9,790,365,136.32
  5. Step 5: Solve for x
    x = 9,790,365,136.32/102,962.40
  6. Step 6: Final answer
    x = 95,086.80

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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.