Home / 115,743.06-159,731.62-64,752.74

Finding the Fourth Proportional to 115,743.06, 159,731.62 and 64,752.74

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Solution

The fourth proportional to 115,743.06, 159,731.62 and 64,752.74 is: 89,362.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,743.06 : 159,731.62 = 64,752.74 : x
  2. Step 2: Convert to fraction form
    115,743.06/159,731.62 = 64,752.74/x
  3. Step 3: Cross multiply
    115,743.06x = 159,731.62 × 64,752.74
  4. Step 4: Simplify right side
    115,743.06x = 10,343,060,059.64
  5. Step 5: Solve for x
    x = 10,343,060,059.64/115,743.06
  6. Step 6: Final answer
    x = 89,362.25

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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.