Home / 134,321.06-185,342.50-77,721.50

Finding the Fourth Proportional to 134,321.06, 185,342.50 and 77,721.50

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Solution

The fourth proportional to 134,321.06, 185,342.50 and 77,721.50 is: 107,243.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,321.06 : 185,342.50 = 77,721.50 : x
  2. Step 2: Convert to fraction form
    134,321.06/185,342.50 = 77,721.50/x
  3. Step 3: Cross multiply
    134,321.06x = 185,342.50 × 77,721.50
  4. Step 4: Simplify right side
    134,321.06x = 14,405,097,113.75
  5. Step 5: Solve for x
    x = 14,405,097,113.75/134,321.06
  6. Step 6: Final answer
    x = 107,243.77

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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.