Home / 156,737.37-216,363.78-105,819.07

Finding the Fourth Proportional to 156,737.37, 216,363.78 and 105,819.07

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Solution

The fourth proportional to 156,737.37, 216,363.78 and 105,819.07 is: 146,075.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,737.37 : 216,363.78 = 105,819.07 : x
  2. Step 2: Convert to fraction form
    156,737.37/216,363.78 = 105,819.07/x
  3. Step 3: Cross multiply
    156,737.37x = 216,363.78 × 105,819.07
  4. Step 4: Simplify right side
    156,737.37x = 22,895,413,981.28
  5. Step 5: Solve for x
    x = 22,895,413,981.28/156,737.37
  6. Step 6: Final answer
    x = 146,075.02

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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.