Home / 166,408.40-249,611.69-66,591.70

Finding the Fourth Proportional to 166,408.40, 249,611.69 and 66,591.70

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Solution

The fourth proportional to 166,408.40, 249,611.69 and 66,591.70 is: 99,887.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,408.40 : 249,611.69 = 66,591.70 : x
  2. Step 2: Convert to fraction form
    166,408.40/249,611.69 = 66,591.70/x
  3. Step 3: Cross multiply
    166,408.40x = 249,611.69 × 66,591.70
  4. Step 4: Simplify right side
    166,408.40x = 16,622,066,319.42
  5. Step 5: Solve for x
    x = 16,622,066,319.42/166,408.40
  6. Step 6: Final answer
    x = 99,887.18

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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.