Home / 156,736.08-216,362.01-105,817.78

Finding the Fourth Proportional to 156,736.08, 216,362.01 and 105,817.78

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Solution

The fourth proportional to 156,736.08, 216,362.01 and 105,817.78 is: 146,073.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,736.08 : 216,362.01 = 105,817.78 : x
  2. Step 2: Convert to fraction form
    156,736.08/216,362.01 = 105,817.78/x
  3. Step 3: Cross multiply
    156,736.08x = 216,362.01 × 105,817.78
  4. Step 4: Simplify right side
    156,736.08x = 22,894,948,255.10
  5. Step 5: Solve for x
    x = 22,894,948,255.10/156,736.08
  6. Step 6: Final answer
    x = 146,073.25

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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.