Home / 156,736.95-216,363.20-105,818.64

Finding the Fourth Proportional to 156,736.95, 216,363.20 and 105,818.64

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Solution

The fourth proportional to 156,736.95, 216,363.20 and 105,818.64 is: 146,074.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,736.95 : 216,363.20 = 105,818.64 : x
  2. Step 2: Convert to fraction form
    156,736.95/216,363.20 = 105,818.64/x
  3. Step 3: Cross multiply
    156,736.95x = 216,363.20 × 105,818.64
  4. Step 4: Simplify right side
    156,736.95x = 22,895,259,040.95
  5. Step 5: Solve for x
    x = 22,895,259,040.95/156,736.95
  6. Step 6: Final answer
    x = 146,074.42

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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.