Home / 118,190.35-163,139.07-72,882.55

Finding the Fourth Proportional to 118,190.35, 163,139.07 and 72,882.55

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Solution

The fourth proportional to 118,190.35, 163,139.07 and 72,882.55 is: 100,600.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,190.35 : 163,139.07 = 72,882.55 : x
  2. Step 2: Convert to fraction form
    118,190.35/163,139.07 = 72,882.55/x
  3. Step 3: Cross multiply
    118,190.35x = 163,139.07 × 72,882.55
  4. Step 4: Simplify right side
    118,190.35x = 11,889,991,426.23
  5. Step 5: Solve for x
    x = 11,889,991,426.23/118,190.35
  6. Step 6: Final answer
    x = 100,600.36

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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.