Home / 166,255.16-249,344.75-66,388.55

Finding the Fourth Proportional to 166,255.16, 249,344.75 and 66,388.55

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Solution

The fourth proportional to 166,255.16, 249,344.75 and 66,388.55 is: 99,567.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,255.16 : 249,344.75 = 66,388.55 : x
  2. Step 2: Convert to fraction form
    166,255.16/249,344.75 = 66,388.55/x
  3. Step 3: Cross multiply
    166,255.16x = 249,344.75 × 66,388.55
  4. Step 4: Simplify right side
    166,255.16x = 16,553,634,823.95
  5. Step 5: Solve for x
    x = 16,553,634,823.95/166,255.16
  6. Step 6: Final answer
    x = 99,567.65

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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.