Home / 99,266.41-136,918.37-65,264.03

Finding the Fourth Proportional to 99,266.41, 136,918.37 and 65,264.03

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Solution

The fourth proportional to 99,266.41, 136,918.37 and 65,264.03 is: 90,018.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,266.41 : 136,918.37 = 65,264.03 : x
  2. Step 2: Convert to fraction form
    99,266.41/136,918.37 = 65,264.03/x
  3. Step 3: Cross multiply
    99,266.41x = 136,918.37 × 65,264.03
  4. Step 4: Simplify right side
    99,266.41x = 8,935,844,232.13
  5. Step 5: Solve for x
    x = 8,935,844,232.13/99,266.41
  6. Step 6: Final answer
    x = 90,018.81

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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.