Home / 91,625.35-137,280.21-71,627.08

Finding the Fourth Proportional to 91,625.35, 137,280.21 and 71,627.08

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Solution

The fourth proportional to 91,625.35, 137,280.21 and 71,627.08 is: 107,317.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,625.35 : 137,280.21 = 71,627.08 : x
  2. Step 2: Convert to fraction form
    91,625.35/137,280.21 = 71,627.08/x
  3. Step 3: Cross multiply
    91,625.35x = 137,280.21 × 71,627.08
  4. Step 4: Simplify right side
    91,625.35x = 9,832,980,584.09
  5. Step 5: Solve for x
    x = 9,832,980,584.09/91,625.35
  6. Step 6: Final answer
    x = 107,317.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.