Home / 152,989.20-229,532.40-68,716.80

Finding the Fourth Proportional to 152,989.20, 229,532.40 and 68,716.80

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Solution

The fourth proportional to 152,989.20, 229,532.40 and 68,716.80 is: 103,097.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,989.20 : 229,532.40 = 68,716.80 : x
  2. Step 2: Convert to fraction form
    152,989.20/229,532.40 = 68,716.80/x
  3. Step 3: Cross multiply
    152,989.20x = 229,532.40 × 68,716.80
  4. Step 4: Simplify right side
    152,989.20x = 15,772,732,024.32
  5. Step 5: Solve for x
    x = 15,772,732,024.32/152,989.20
  6. Step 6: Final answer
    x = 103,097.03

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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.