Home / 161,981.64-223,535.30-90,367.11

Finding the Fourth Proportional to 161,981.64, 223,535.30 and 90,367.11

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Solution

The fourth proportional to 161,981.64, 223,535.30 and 90,367.11 is: 124,706.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,981.64 : 223,535.30 = 90,367.11 : x
  2. Step 2: Convert to fraction form
    161,981.64/223,535.30 = 90,367.11/x
  3. Step 3: Cross multiply
    161,981.64x = 223,535.30 × 90,367.11
  4. Step 4: Simplify right side
    161,981.64x = 20,200,238,592.15
  5. Step 5: Solve for x
    x = 20,200,238,592.15/161,981.64
  6. Step 6: Final answer
    x = 124,706.96

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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.