Home / 156,738.21-216,364.95-105,819.93

Finding the Fourth Proportional to 156,738.21, 216,364.95 and 105,819.93

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Solution

The fourth proportional to 156,738.21, 216,364.95 and 105,819.93 is: 146,076.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,738.21 : 216,364.95 = 105,819.93 : x
  2. Step 2: Convert to fraction form
    156,738.21/216,364.95 = 105,819.93/x
  3. Step 3: Cross multiply
    156,738.21x = 216,364.95 × 105,819.93
  4. Step 4: Simplify right side
    156,738.21x = 22,895,723,863.45
  5. Step 5: Solve for x
    x = 22,895,723,863.45/156,738.21
  6. Step 6: Final answer
    x = 146,076.21

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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.