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Finding the Fourth Proportional to 111,883.80, 167,712.30 and 55,637.40

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Solution

The fourth proportional to 111,883.80, 167,712.30 and 55,637.40 is: 83,399.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,883.80 : 167,712.30 = 55,637.40 : x
  2. Step 2: Convert to fraction form
    111,883.80/167,712.30 = 55,637.40/x
  3. Step 3: Cross multiply
    111,883.80x = 167,712.30 × 55,637.40
  4. Step 4: Simplify right side
    111,883.80x = 9,331,076,320.02
  5. Step 5: Solve for x
    x = 9,331,076,320.02/111,883.80
  6. Step 6: Final answer
    x = 83,399.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.