Home / 134,385.54-185,472.46-80,700.16

Finding the Fourth Proportional to 134,385.54, 185,472.46 and 80,700.16

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Solution

The fourth proportional to 134,385.54, 185,472.46 and 80,700.16 is: 111,378.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,385.54 : 185,472.46 = 80,700.16 : x
  2. Step 2: Convert to fraction form
    134,385.54/185,472.46 = 80,700.16/x
  3. Step 3: Cross multiply
    134,385.54x = 185,472.46 × 80,700.16
  4. Step 4: Simplify right side
    134,385.54x = 14,967,657,197.59
  5. Step 5: Solve for x
    x = 14,967,657,197.59/134,385.54
  6. Step 6: Final answer
    x = 111,378.48

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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.