Home / 108,330.62-149,533.83-74,451.25

Finding the Fourth Proportional to 108,330.62, 149,533.83 and 74,451.25

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Solution

The fourth proportional to 108,330.62, 149,533.83 and 74,451.25 is: 102,768.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,330.62 : 149,533.83 = 74,451.25 : x
  2. Step 2: Convert to fraction form
    108,330.62/149,533.83 = 74,451.25/x
  3. Step 3: Cross multiply
    108,330.62x = 149,533.83 × 74,451.25
  4. Step 4: Simplify right side
    108,330.62x = 11,132,980,560.79
  5. Step 5: Solve for x
    x = 11,132,980,560.79/108,330.62
  6. Step 6: Final answer
    x = 102,768.55

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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.