Home / 99,611.80-149,417.70-92,008.60

Finding the Fourth Proportional to 99,611.80, 149,417.70 and 92,008.60

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Solution

The fourth proportional to 99,611.80, 149,417.70 and 92,008.60 is: 138,012.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,611.80 : 149,417.70 = 92,008.60 : x
  2. Step 2: Convert to fraction form
    99,611.80/149,417.70 = 92,008.60/x
  3. Step 3: Cross multiply
    99,611.80x = 149,417.70 × 92,008.60
  4. Step 4: Simplify right side
    99,611.80x = 13,747,713,392.22
  5. Step 5: Solve for x
    x = 13,747,713,392.22/99,611.80
  6. Step 6: Final answer
    x = 138,012.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.