Home / 208,625.41-287,903.07-113,132.18

Finding the Fourth Proportional to 208,625.41, 287,903.07 and 113,132.18

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Solution

The fourth proportional to 208,625.41, 287,903.07 and 113,132.18 is: 156,122.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,625.41 : 287,903.07 = 113,132.18 : x
  2. Step 2: Convert to fraction form
    208,625.41/287,903.07 = 113,132.18/x
  3. Step 3: Cross multiply
    208,625.41x = 287,903.07 × 113,132.18
  4. Step 4: Simplify right side
    208,625.41x = 32,571,101,937.79
  5. Step 5: Solve for x
    x = 32,571,101,937.79/208,625.41
  6. Step 6: Final answer
    x = 156,122.41

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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.