Home / 99,708.95-149,563.43-66,531.35

Finding the Fourth Proportional to 99,708.95, 149,563.43 and 66,531.35

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Solution

The fourth proportional to 99,708.95, 149,563.43 and 66,531.35 is: 99,797.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,708.95 : 149,563.43 = 66,531.35 : x
  2. Step 2: Convert to fraction form
    99,708.95/149,563.43 = 66,531.35/x
  3. Step 3: Cross multiply
    99,708.95x = 149,563.43 × 66,531.35
  4. Step 4: Simplify right side
    99,708.95x = 9,950,656,575.87
  5. Step 5: Solve for x
    x = 9,950,656,575.87/99,708.95
  6. Step 6: Final answer
    x = 99,797.03

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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.