Home / 95,646.18-143,731.71-90,211.50

Finding the Fourth Proportional to 95,646.18, 143,731.71 and 90,211.50

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Solution

The fourth proportional to 95,646.18, 143,731.71 and 90,211.50 is: 135,564.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,646.18 : 143,731.71 = 90,211.50 : x
  2. Step 2: Convert to fraction form
    95,646.18/143,731.71 = 90,211.50/x
  3. Step 3: Cross multiply
    95,646.18x = 143,731.71 × 90,211.50
  4. Step 4: Simplify right side
    95,646.18x = 12,966,253,156.67
  5. Step 5: Solve for x
    x = 12,966,253,156.67/95,646.18
  6. Step 6: Final answer
    x = 135,564.78

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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.