Home / 99,505.19-137,272.74-67,229.39

Finding the Fourth Proportional to 99,505.19, 137,272.74 and 67,229.39

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Solution

The fourth proportional to 99,505.19, 137,272.74 and 67,229.39 is: 92,746.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,505.19 : 137,272.74 = 67,229.39 : x
  2. Step 2: Convert to fraction form
    99,505.19/137,272.74 = 67,229.39/x
  3. Step 3: Cross multiply
    99,505.19x = 137,272.74 × 67,229.39
  4. Step 4: Simplify right side
    99,505.19x = 9,228,762,573.83
  5. Step 5: Solve for x
    x = 9,228,762,573.83/99,505.19
  6. Step 6: Final answer
    x = 92,746.54

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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.