Home / 99,178.76-136,860.18-58,890.44

Finding the Fourth Proportional to 99,178.76, 136,860.18 and 58,890.44

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Solution

The fourth proportional to 99,178.76, 136,860.18 and 58,890.44 is: 81,264.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,178.76 : 136,860.18 = 58,890.44 : x
  2. Step 2: Convert to fraction form
    99,178.76/136,860.18 = 58,890.44/x
  3. Step 3: Cross multiply
    99,178.76x = 136,860.18 × 58,890.44
  4. Step 4: Simplify right side
    99,178.76x = 8,059,756,218.68
  5. Step 5: Solve for x
    x = 8,059,756,218.68/99,178.76
  6. Step 6: Final answer
    x = 81,264.94

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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.