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Finding the Fourth Proportional to 99,104.99, 136,878.44 and 65,264.73

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Solution

The fourth proportional to 99,104.99, 136,878.44 and 65,264.73 is: 90,140.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,104.99 : 136,878.44 = 65,264.73 : x
  2. Step 2: Convert to fraction form
    99,104.99/136,878.44 = 65,264.73/x
  3. Step 3: Cross multiply
    99,104.99x = 136,878.44 × 65,264.73
  4. Step 4: Simplify right side
    99,104.99x = 8,933,334,103.10
  5. Step 5: Solve for x
    x = 8,933,334,103.10/99,104.99
  6. Step 6: Final answer
    x = 90,140.11

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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.