Home / 152,153.40-228,230.10-81,294.60

Finding the Fourth Proportional to 152,153.40, 228,230.10 and 81,294.60

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Solution

The fourth proportional to 152,153.40, 228,230.10 and 81,294.60 is: 121,941.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,153.40 : 228,230.10 = 81,294.60 : x
  2. Step 2: Convert to fraction form
    152,153.40/228,230.10 = 81,294.60/x
  3. Step 3: Cross multiply
    152,153.40x = 228,230.10 × 81,294.60
  4. Step 4: Simplify right side
    152,153.40x = 18,553,874,687.46
  5. Step 5: Solve for x
    x = 18,553,874,687.46/152,153.40
  6. Step 6: Final answer
    x = 121,941.90

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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.