Home / 99,316.19-136,922.20-67,429.73

Finding the Fourth Proportional to 99,316.19, 136,922.20 and 67,429.73

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Solution

The fourth proportional to 99,316.19, 136,922.20 and 67,429.73 is: 92,961.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,316.19 : 136,922.20 = 67,429.73 : x
  2. Step 2: Convert to fraction form
    99,316.19/136,922.20 = 67,429.73/x
  3. Step 3: Cross multiply
    99,316.19x = 136,922.20 × 67,429.73
  4. Step 4: Simplify right side
    99,316.19x = 9,232,627,150.74
  5. Step 5: Solve for x
    x = 9,232,627,150.74/99,316.19
  6. Step 6: Final answer
    x = 92,961.95

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1.5x scale

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.