Home / 166,623.20-249,716.10-66,701.60

Finding the Fourth Proportional to 166,623.20, 249,716.10 and 66,701.60

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Solution

The fourth proportional to 166,623.20, 249,716.10 and 66,701.60 is: 99,964.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,623.20 : 249,716.10 = 66,701.60 : x
  2. Step 2: Convert to fraction form
    166,623.20/249,716.10 = 66,701.60/x
  3. Step 3: Cross multiply
    166,623.20x = 249,716.10 × 66,701.60
  4. Step 4: Simplify right side
    166,623.20x = 16,656,463,415.76
  5. Step 5: Solve for x
    x = 16,656,463,415.76/166,623.20
  6. Step 6: Final answer
    x = 99,964.85

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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.