Home / 166,439.40-249,653.62-66,572.78

Finding the Fourth Proportional to 166,439.40, 249,653.62 and 66,572.78

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Solution

The fourth proportional to 166,439.40, 249,653.62 and 66,572.78 is: 99,856.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,439.40 : 249,653.62 = 66,572.78 : x
  2. Step 2: Convert to fraction form
    166,439.40/249,653.62 = 66,572.78/x
  3. Step 3: Cross multiply
    166,439.40x = 249,653.62 × 66,572.78
  4. Step 4: Simplify right side
    166,439.40x = 16,620,135,520.46
  5. Step 5: Solve for x
    x = 16,620,135,520.46/166,439.40
  6. Step 6: Final answer
    x = 99,856.98

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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.