Home / 99,987.46-149,099.30-99,087.37

Finding the Fourth Proportional to 99,987.46, 149,099.30 and 99,087.37

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Solution

The fourth proportional to 99,987.46, 149,099.30 and 99,087.37 is: 147,757.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,987.46 : 149,099.30 = 99,087.37 : x
  2. Step 2: Convert to fraction form
    99,987.46/149,099.30 = 99,087.37/x
  3. Step 3: Cross multiply
    99,987.46x = 149,099.30 × 99,087.37
  4. Step 4: Simplify right side
    99,987.46x = 14,773,857,505.84
  5. Step 5: Solve for x
    x = 14,773,857,505.84/99,987.46
  6. Step 6: Final answer
    x = 147,757.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.