Home / 95,165.77-143,417.51-85,689.69

Finding the Fourth Proportional to 95,165.77, 143,417.51 and 85,689.69

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Solution

The fourth proportional to 95,165.77, 143,417.51 and 85,689.69 is: 129,136.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,165.77 : 143,417.51 = 85,689.69 : x
  2. Step 2: Convert to fraction form
    95,165.77/143,417.51 = 85,689.69/x
  3. Step 3: Cross multiply
    95,165.77x = 143,417.51 × 85,689.69
  4. Step 4: Simplify right side
    95,165.77x = 12,289,401,972.47
  5. Step 5: Solve for x
    x = 12,289,401,972.47/95,165.77
  6. Step 6: Final answer
    x = 129,136.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.