Home / 156,947.84-216,677.28-103,388.48

Finding the Fourth Proportional to 156,947.84, 216,677.28 and 103,388.48

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Solution

The fourth proportional to 156,947.84, 216,677.28 and 103,388.48 is: 142,734.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,947.84 : 216,677.28 = 103,388.48 : x
  2. Step 2: Convert to fraction form
    156,947.84/216,677.28 = 103,388.48/x
  3. Step 3: Cross multiply
    156,947.84x = 216,677.28 × 103,388.48
  4. Step 4: Simplify right side
    156,947.84x = 22,401,934,629.73
  5. Step 5: Solve for x
    x = 22,401,934,629.73/156,947.84
  6. Step 6: Final answer
    x = 142,734.90

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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.