Home / 87,166.68-120,153.55-56,936.87

Finding the Fourth Proportional to 87,166.68, 120,153.55 and 56,936.87

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Solution

The fourth proportional to 87,166.68, 120,153.55 and 56,936.87 is: 78,483.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,166.68 : 120,153.55 = 56,936.87 : x
  2. Step 2: Convert to fraction form
    87,166.68/120,153.55 = 56,936.87/x
  3. Step 3: Cross multiply
    87,166.68x = 120,153.55 × 56,936.87
  4. Step 4: Simplify right side
    87,166.68x = 6,841,167,706.61
  5. Step 5: Solve for x
    x = 6,841,167,706.61/87,166.68
  6. Step 6: Final answer
    x = 78,483.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.