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Finding the Fourth Proportional to 166,438.60, 249,657.90 and 66,614.20

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Solution

The fourth proportional to 166,438.60, 249,657.90 and 66,614.20 is: 99,921.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,438.60 : 249,657.90 = 66,614.20 : x
  2. Step 2: Convert to fraction form
    166,438.60/249,657.90 = 66,614.20/x
  3. Step 3: Cross multiply
    166,438.60x = 249,657.90 × 66,614.20
  4. Step 4: Simplify right side
    166,438.60x = 16,630,761,282.18
  5. Step 5: Solve for x
    x = 16,630,761,282.18/166,438.60
  6. Step 6: Final answer
    x = 99,921.30

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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.