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Finding the Fourth Proportional to 166,484, 249,726.24 and 67,988

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Solution

The fourth proportional to 166,484, 249,726.24 and 67,988 is: 101,982.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,484 : 249,726.24 = 67,988 : x
  2. Step 2: Convert to fraction form
    166,484/249,726.24 = 67,988/x
  3. Step 3: Cross multiply
    166,484x = 249,726.24 × 67,988
  4. Step 4: Simplify right side
    166,484x = 16,978,387,605.12
  5. Step 5: Solve for x
    x = 16,978,387,605.12/166,484
  6. Step 6: Final answer
    x = 101,982.10

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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.