Home / 152,151.40-228,227.10-81,292.60

Finding the Fourth Proportional to 152,151.40, 228,227.10 and 81,292.60

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Solution

The fourth proportional to 152,151.40, 228,227.10 and 81,292.60 is: 121,938.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,151.40 : 228,227.10 = 81,292.60 : x
  2. Step 2: Convert to fraction form
    152,151.40/228,227.10 = 81,292.60/x
  3. Step 3: Cross multiply
    152,151.40x = 228,227.10 × 81,292.60
  4. Step 4: Simplify right side
    152,151.40x = 18,553,174,349.46
  5. Step 5: Solve for x
    x = 18,553,174,349.46/152,151.40
  6. Step 6: Final answer
    x = 121,938.90

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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.