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Finding the Fourth Proportional to 110,037.18, 151,921.88 and 75,639.12

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Solution

The fourth proportional to 110,037.18, 151,921.88 and 75,639.12 is: 104,430.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,037.18 : 151,921.88 = 75,639.12 : x
  2. Step 2: Convert to fraction form
    110,037.18/151,921.88 = 75,639.12/x
  3. Step 3: Cross multiply
    110,037.18x = 151,921.88 × 75,639.12
  4. Step 4: Simplify right side
    110,037.18x = 11,491,236,647.69
  5. Step 5: Solve for x
    x = 11,491,236,647.69/110,037.18
  6. Step 6: Final answer
    x = 104,430.49

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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.