Home / 166,312.80-229,511.52-90,861.28

Finding the Fourth Proportional to 166,312.80, 229,511.52 and 90,861.28

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Solution

The fourth proportional to 166,312.80, 229,511.52 and 90,861.28 is: 125,388.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,312.80 : 229,511.52 = 90,861.28 : x
  2. Step 2: Convert to fraction form
    166,312.80/229,511.52 = 90,861.28/x
  3. Step 3: Cross multiply
    166,312.80x = 229,511.52 × 90,861.28
  4. Step 4: Simplify right side
    166,312.80x = 20,853,710,481.95
  5. Step 5: Solve for x
    x = 20,853,710,481.95/166,312.80
  6. Step 6: Final answer
    x = 125,388.49

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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.