Home / 166,439.10-249,512.85-99,905.70

Finding the Fourth Proportional to 166,439.10, 249,512.85 and 99,905.70

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Solution

The fourth proportional to 166,439.10, 249,512.85 and 99,905.70 is: 149,771.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,439.10 : 249,512.85 = 99,905.70 : x
  2. Step 2: Convert to fraction form
    166,439.10/249,512.85 = 99,905.70/x
  3. Step 3: Cross multiply
    166,439.10x = 249,512.85 × 99,905.70
  4. Step 4: Simplify right side
    166,439.10x = 24,927,755,938.25
  5. Step 5: Solve for x
    x = 24,927,755,938.25/166,439.10
  6. Step 6: Final answer
    x = 149,771.03

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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.