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Finding the Fourth Proportional to 117,259.90, 161,816.27 and 65,576.84

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Solution

The fourth proportional to 117,259.90, 161,816.27 and 65,576.84 is: 90,494.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,259.90 : 161,816.27 = 65,576.84 : x
  2. Step 2: Convert to fraction form
    117,259.90/161,816.27 = 65,576.84/x
  3. Step 3: Cross multiply
    117,259.90x = 161,816.27 × 65,576.84
  4. Step 4: Simplify right side
    117,259.90x = 10,611,398,510.22
  5. Step 5: Solve for x
    x = 10,611,398,510.22/117,259.90
  6. Step 6: Final answer
    x = 90,494.69

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1.5x scale

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.