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Finding the Fourth Proportional to 166,445.80, 249,522.90 and 99,815.20

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Solution

The fourth proportional to 166,445.80, 249,522.90 and 99,815.20 is: 149,635.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,445.80 : 249,522.90 = 99,815.20 : x
  2. Step 2: Convert to fraction form
    166,445.80/249,522.90 = 99,815.20/x
  3. Step 3: Cross multiply
    166,445.80x = 249,522.90 × 99,815.20
  4. Step 4: Simplify right side
    166,445.80x = 24,906,178,168.08
  5. Step 5: Solve for x
    x = 24,906,178,168.08/166,445.80
  6. Step 6: Final answer
    x = 149,635.37

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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.