Home / 99,121.56-136,830.38-60,887.34

Finding the Fourth Proportional to 99,121.56, 136,830.38 and 60,887.34

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Solution

The fourth proportional to 99,121.56, 136,830.38 and 60,887.34 is: 84,050.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,121.56 : 136,830.38 = 60,887.34 : x
  2. Step 2: Convert to fraction form
    99,121.56/136,830.38 = 60,887.34/x
  3. Step 3: Cross multiply
    99,121.56x = 136,830.38 × 60,887.34
  4. Step 4: Simplify right side
    99,121.56x = 8,331,237,564.95
  5. Step 5: Solve for x
    x = 8,331,237,564.95/99,121.56
  6. Step 6: Final answer
    x = 84,050.71

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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.