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Finding the Fourth Proportional to 166,479.94, 249,642.28 and 86,496.42

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Solution

The fourth proportional to 166,479.94, 249,642.28 and 86,496.42 is: 129,704.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,479.94 : 249,642.28 = 86,496.42 : x
  2. Step 2: Convert to fraction form
    166,479.94/249,642.28 = 86,496.42/x
  3. Step 3: Cross multiply
    166,479.94x = 249,642.28 × 86,496.42
  4. Step 4: Simplify right side
    166,479.94x = 21,593,163,500.64
  5. Step 5: Solve for x
    x = 21,593,163,500.64/166,479.94
  6. Step 6: Final answer
    x = 129,704.30

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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.