Home / 152,512.30-228,877.80-85,881.70

Finding the Fourth Proportional to 152,512.30, 228,877.80 and 85,881.70

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Solution

The fourth proportional to 152,512.30, 228,877.80 and 85,881.70 is: 128,884.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,512.30 : 228,877.80 = 85,881.70 : x
  2. Step 2: Convert to fraction form
    152,512.30/228,877.80 = 85,881.70/x
  3. Step 3: Cross multiply
    152,512.30x = 228,877.80 × 85,881.70
  4. Step 4: Simplify right side
    152,512.30x = 19,656,414,556.26
  5. Step 5: Solve for x
    x = 19,656,414,556.26/152,512.30
  6. Step 6: Final answer
    x = 128,884.13

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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.