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Finding the Fourth Proportional to 166,297.51, 249,447.63 and 71,521.13

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Solution

The fourth proportional to 166,297.51, 249,447.63 and 71,521.13 is: 107,282.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,297.51 : 249,447.63 = 71,521.13 : x
  2. Step 2: Convert to fraction form
    166,297.51/249,447.63 = 71,521.13/x
  3. Step 3: Cross multiply
    166,297.51x = 249,447.63 × 71,521.13
  4. Step 4: Simplify right side
    166,297.51x = 17,840,775,258.64
  5. Step 5: Solve for x
    x = 17,840,775,258.64/166,297.51
  6. Step 6: Final answer
    x = 107,282.28

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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.