Home / 118,431.63-163,435.46-64,716.66

Finding the Fourth Proportional to 118,431.63, 163,435.46 and 64,716.66

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Solution

The fourth proportional to 118,431.63, 163,435.46 and 64,716.66 is: 89,308.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,431.63 : 163,435.46 = 64,716.66 : x
  2. Step 2: Convert to fraction form
    118,431.63/163,435.46 = 64,716.66/x
  3. Step 3: Cross multiply
    118,431.63x = 163,435.46 × 64,716.66
  4. Step 4: Simplify right side
    118,431.63x = 10,576,996,773.18
  5. Step 5: Solve for x
    x = 10,576,996,773.18/118,431.63
  6. Step 6: Final answer
    x = 89,308.88

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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.