Home / 156,734.72-216,360.12-105,816.41

Finding the Fourth Proportional to 156,734.72, 216,360.12 and 105,816.41

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Solution

The fourth proportional to 156,734.72, 216,360.12 and 105,816.41 is: 146,071.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,734.72 : 216,360.12 = 105,816.41 : x
  2. Step 2: Convert to fraction form
    156,734.72/216,360.12 = 105,816.41/x
  3. Step 3: Cross multiply
    156,734.72x = 216,360.12 × 105,816.41
  4. Step 4: Simplify right side
    156,734.72x = 22,894,451,177.39
  5. Step 5: Solve for x
    x = 22,894,451,177.39/156,734.72
  6. Step 6: Final answer
    x = 146,071.35

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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.