Home / 110,134.13-151,985.09-65,422.13

Finding the Fourth Proportional to 110,134.13, 151,985.09 and 65,422.13

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Solution

The fourth proportional to 110,134.13, 151,985.09 and 65,422.13 is: 90,282.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,134.13 : 151,985.09 = 65,422.13 : x
  2. Step 2: Convert to fraction form
    110,134.13/151,985.09 = 65,422.13/x
  3. Step 3: Cross multiply
    110,134.13x = 151,985.09 × 65,422.13
  4. Step 4: Simplify right side
    110,134.13x = 9,943,187,719.67
  5. Step 5: Solve for x
    x = 9,943,187,719.67/110,134.13
  6. Step 6: Final answer
    x = 90,282.53

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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.