Home / 99,087.48-136,771.98-66,868.92

Finding the Fourth Proportional to 99,087.48, 136,771.98 and 66,868.92

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Solution

The fourth proportional to 99,087.48, 136,771.98 and 66,868.92 is: 92,300.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,087.48 : 136,771.98 = 66,868.92 : x
  2. Step 2: Convert to fraction form
    99,087.48/136,771.98 = 66,868.92/x
  3. Step 3: Cross multiply
    99,087.48x = 136,771.98 × 66,868.92
  4. Step 4: Simplify right side
    99,087.48x = 9,145,794,588.86
  5. Step 5: Solve for x
    x = 9,145,794,588.86/99,087.48
  6. Step 6: Final answer
    x = 92,300.20

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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.