Home / 134,592.20-185,721-77,228.36

Finding the Fourth Proportional to 134,592.20, 185,721 and 77,228.36

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Solution

The fourth proportional to 134,592.20, 185,721 and 77,228.36 is: 106,565.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,592.20 : 185,721 = 77,228.36 : x
  2. Step 2: Convert to fraction form
    134,592.20/185,721 = 77,228.36/x
  3. Step 3: Cross multiply
    134,592.20x = 185,721 × 77,228.36
  4. Step 4: Simplify right side
    134,592.20x = 14,342,928,247.56
  5. Step 5: Solve for x
    x = 14,342,928,247.56/134,592.20
  6. Step 6: Final answer
    x = 106,565.82

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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.