Home / 88,717.10-133,075.65-85,217.90

Finding the Fourth Proportional to 88,717.10, 133,075.65 and 85,217.90

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Solution

The fourth proportional to 88,717.10, 133,075.65 and 85,217.90 is: 127,826.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,717.10 : 133,075.65 = 85,217.90 : x
  2. Step 2: Convert to fraction form
    88,717.10/133,075.65 = 85,217.90/x
  3. Step 3: Cross multiply
    88,717.10x = 133,075.65 × 85,217.90
  4. Step 4: Simplify right side
    88,717.10x = 11,340,427,434.14
  5. Step 5: Solve for x
    x = 11,340,427,434.14/88,717.10
  6. Step 6: Final answer
    x = 127,826.85

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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.