Home / 166,038.40-229,135.62-90,586.90

Finding the Fourth Proportional to 166,038.40, 229,135.62 and 90,586.90

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Solution

The fourth proportional to 166,038.40, 229,135.62 and 90,586.90 is: 125,011.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,038.40 : 229,135.62 = 90,586.90 : x
  2. Step 2: Convert to fraction form
    166,038.40/229,135.62 = 90,586.90/x
  3. Step 3: Cross multiply
    166,038.40x = 229,135.62 × 90,586.90
  4. Step 4: Simplify right side
    166,038.40x = 20,756,685,495.38
  5. Step 5: Solve for x
    x = 20,756,685,495.38/166,038.40
  6. Step 6: Final answer
    x = 125,011.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.