Home / 98,923.74-136,573.11-64,991.52

Finding the Fourth Proportional to 98,923.74, 136,573.11 and 64,991.52

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Solution

The fourth proportional to 98,923.74, 136,573.11 and 64,991.52 is: 89,726.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,923.74 : 136,573.11 = 64,991.52 : x
  2. Step 2: Convert to fraction form
    98,923.74/136,573.11 = 64,991.52/x
  3. Step 3: Cross multiply
    98,923.74x = 136,573.11 × 64,991.52
  4. Step 4: Simplify right side
    98,923.74x = 8,876,094,010.03
  5. Step 5: Solve for x
    x = 8,876,094,010.03/98,923.74
  6. Step 6: Final answer
    x = 89,726.63

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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.