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Finding the Fourth Proportional to 166,510.65, 249,952.56 and 66,740.47

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Solution

The fourth proportional to 166,510.65, 249,952.56 and 66,740.47 is: 100,185.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,510.65 : 249,952.56 = 66,740.47 : x
  2. Step 2: Convert to fraction form
    166,510.65/249,952.56 = 66,740.47/x
  3. Step 3: Cross multiply
    166,510.65x = 249,952.56 × 66,740.47
  4. Step 4: Simplify right side
    166,510.65x = 16,681,950,456.95
  5. Step 5: Solve for x
    x = 16,681,950,456.95/166,510.65
  6. Step 6: Final answer
    x = 100,185.48

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1.5x scale

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.