Home / 104,429.60-156,644.40-60,192.80

Finding the Fourth Proportional to 104,429.60, 156,644.40 and 60,192.80

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Solution

The fourth proportional to 104,429.60, 156,644.40 and 60,192.80 is: 90,289.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,429.60 : 156,644.40 = 60,192.80 : x
  2. Step 2: Convert to fraction form
    104,429.60/156,644.40 = 60,192.80/x
  3. Step 3: Cross multiply
    104,429.60x = 156,644.40 × 60,192.80
  4. Step 4: Simplify right side
    104,429.60x = 9,428,865,040.32
  5. Step 5: Solve for x
    x = 9,428,865,040.32/104,429.60
  6. Step 6: Final answer
    x = 90,289.20

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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.