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Finding the Fourth Proportional to 110,132.64, 151,983.03 and 65,420.64

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Solution

The fourth proportional to 110,132.64, 151,983.03 and 65,420.64 is: 90,280.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,132.64 : 151,983.03 = 65,420.64 : x
  2. Step 2: Convert to fraction form
    110,132.64/151,983.03 = 65,420.64/x
  3. Step 3: Cross multiply
    110,132.64x = 151,983.03 × 65,420.64
  4. Step 4: Simplify right side
    110,132.64x = 9,942,827,091.74
  5. Step 5: Solve for x
    x = 9,942,827,091.74/110,132.64
  6. Step 6: Final answer
    x = 90,280.48

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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.