Home / 110,839.64-153,015.74-65,531.48

Finding the Fourth Proportional to 110,839.64, 153,015.74 and 65,531.48

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Solution

The fourth proportional to 110,839.64, 153,015.74 and 65,531.48 is: 90,467.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,839.64 : 153,015.74 = 65,531.48 : x
  2. Step 2: Convert to fraction form
    110,839.64/153,015.74 = 65,531.48/x
  3. Step 3: Cross multiply
    110,839.64x = 153,015.74 × 65,531.48
  4. Step 4: Simplify right side
    110,839.64x = 10,027,347,905.50
  5. Step 5: Solve for x
    x = 10,027,347,905.50/110,839.64
  6. Step 6: Final answer
    x = 90,467.16

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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.