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Finding the Fourth Proportional to 166,104.70, 249,157.05 and 156,919.30

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Solution

The fourth proportional to 166,104.70, 249,157.05 and 156,919.30 is: 235,378.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,104.70 : 249,157.05 = 156,919.30 : x
  2. Step 2: Convert to fraction form
    166,104.70/249,157.05 = 156,919.30/x
  3. Step 3: Cross multiply
    166,104.70x = 249,157.05 × 156,919.30
  4. Step 4: Simplify right side
    166,104.70x = 39,097,549,876.07
  5. Step 5: Solve for x
    x = 39,097,549,876.07/166,104.70
  6. Step 6: Final answer
    x = 235,378.95

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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.