Home / 118,255.88-163,141.93-72,317.54

Finding the Fourth Proportional to 118,255.88, 163,141.93 and 72,317.54

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Solution

The fourth proportional to 118,255.88, 163,141.93 and 72,317.54 is: 99,766.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,255.88 : 163,141.93 = 72,317.54 : x
  2. Step 2: Convert to fraction form
    118,255.88/163,141.93 = 72,317.54/x
  3. Step 3: Cross multiply
    118,255.88x = 163,141.93 × 72,317.54
  4. Step 4: Simplify right side
    118,255.88x = 11,798,023,546.70
  5. Step 5: Solve for x
    x = 11,798,023,546.70/118,255.88
  6. Step 6: Final answer
    x = 99,766.91

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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.