Home / 118,571.92-163,629-70,853.20

Finding the Fourth Proportional to 118,571.92, 163,629 and 70,853.20

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Solution

The fourth proportional to 118,571.92, 163,629 and 70,853.20 is: 97,777.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,571.92 : 163,629 = 70,853.20 : x
  2. Step 2: Convert to fraction form
    118,571.92/163,629 = 70,853.20/x
  3. Step 3: Cross multiply
    118,571.92x = 163,629 × 70,853.20
  4. Step 4: Simplify right side
    118,571.92x = 11,593,638,262.80
  5. Step 5: Solve for x
    x = 11,593,638,262.80/118,571.92
  6. Step 6: Final answer
    x = 97,777.27

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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.