Home / 99,438.54-137,065.86-67,163.06

Finding the Fourth Proportional to 99,438.54, 137,065.86 and 67,163.06

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Solution

The fourth proportional to 99,438.54, 137,065.86 and 67,163.06 is: 92,577.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,438.54 : 137,065.86 = 67,163.06 : x
  2. Step 2: Convert to fraction form
    99,438.54/137,065.86 = 67,163.06/x
  3. Step 3: Cross multiply
    99,438.54x = 137,065.86 × 67,163.06
  4. Step 4: Simplify right side
    99,438.54x = 9,205,761,893.80
  5. Step 5: Solve for x
    x = 9,205,761,893.80/99,438.54
  6. Step 6: Final answer
    x = 92,577.40

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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.