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Finding the Fourth Proportional to 134,255.28, 185,343.48 and 83,970.48

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Solution

The fourth proportional to 134,255.28, 185,343.48 and 83,970.48 is: 115,923.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,255.28 : 185,343.48 = 83,970.48 : x
  2. Step 2: Convert to fraction form
    134,255.28/185,343.48 = 83,970.48/x
  3. Step 3: Cross multiply
    134,255.28x = 185,343.48 × 83,970.48
  4. Step 4: Simplify right side
    134,255.28x = 15,563,380,980.47
  5. Step 5: Solve for x
    x = 15,563,380,980.47/134,255.28
  6. Step 6: Final answer
    x = 115,923.79

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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.