Home / 118,203.02-163,119.40-67,215.76

Finding the Fourth Proportional to 118,203.02, 163,119.40 and 67,215.76

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Solution

The fourth proportional to 118,203.02, 163,119.40 and 67,215.76 is: 92,757.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,203.02 : 163,119.40 = 67,215.76 : x
  2. Step 2: Convert to fraction form
    118,203.02/163,119.40 = 67,215.76/x
  3. Step 3: Cross multiply
    118,203.02x = 163,119.40 × 67,215.76
  4. Step 4: Simplify right side
    118,203.02x = 10,964,194,441.74
  5. Step 5: Solve for x
    x = 10,964,194,441.74/118,203.02
  6. Step 6: Final answer
    x = 92,757.31

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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.