Home / 118,122.66-163,011.96-67,127.36

Finding the Fourth Proportional to 118,122.66, 163,011.96 and 67,127.36

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Solution

The fourth proportional to 118,122.66, 163,011.96 and 67,127.36 is: 92,637.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,122.66 : 163,011.96 = 67,127.36 : x
  2. Step 2: Convert to fraction form
    118,122.66/163,011.96 = 67,127.36/x
  3. Step 3: Cross multiply
    118,122.66x = 163,011.96 × 67,127.36
  4. Step 4: Simplify right side
    118,122.66x = 10,942,561,708.17
  5. Step 5: Solve for x
    x = 10,942,561,708.17/118,122.66
  6. Step 6: Final answer
    x = 92,637.28

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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.