Home / 152,511.80-228,877.05-85,881.20

Finding the Fourth Proportional to 152,511.80, 228,877.05 and 85,881.20

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Solution

The fourth proportional to 152,511.80, 228,877.05 and 85,881.20 is: 128,883.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,511.80 : 228,877.05 = 85,881.20 : x
  2. Step 2: Convert to fraction form
    152,511.80/228,877.05 = 85,881.20/x
  3. Step 3: Cross multiply
    152,511.80x = 228,877.05 × 85,881.20
  4. Step 4: Simplify right side
    152,511.80x = 19,656,235,706.46
  5. Step 5: Solve for x
    x = 19,656,235,706.46/152,511.80
  6. Step 6: Final answer
    x = 128,883.38

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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.