Home / 108,961.02-150,378.40-65,964.21

Finding the Fourth Proportional to 108,961.02, 150,378.40 and 65,964.21

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Solution

The fourth proportional to 108,961.02, 150,378.40 and 65,964.21 is: 91,037.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,961.02 : 150,378.40 = 65,964.21 : x
  2. Step 2: Convert to fraction form
    108,961.02/150,378.40 = 65,964.21/x
  3. Step 3: Cross multiply
    108,961.02x = 150,378.40 × 65,964.21
  4. Step 4: Simplify right side
    108,961.02x = 9,919,592,357.06
  5. Step 5: Solve for x
    x = 9,919,592,357.06/108,961.02
  6. Step 6: Final answer
    x = 91,037.99

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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.