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Finding the Fourth Proportional to 103,571.82, 142,923.02 and 57,630.24

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Solution

The fourth proportional to 103,571.82, 142,923.02 and 57,630.24 is: 79,526.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,571.82 : 142,923.02 = 57,630.24 : x
  2. Step 2: Convert to fraction form
    103,571.82/142,923.02 = 57,630.24/x
  3. Step 3: Cross multiply
    103,571.82x = 142,923.02 × 57,630.24
  4. Step 4: Simplify right side
    103,571.82x = 8,236,687,655.97
  5. Step 5: Solve for x
    x = 8,236,687,655.97/103,571.82
  6. Step 6: Final answer
    x = 79,526.34

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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.