Home / 108,725.60-149,902.40-70,417.44

Finding the Fourth Proportional to 108,725.60, 149,902.40 and 70,417.44

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Solution

The fourth proportional to 108,725.60, 149,902.40 and 70,417.44 is: 97,086.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,725.60 : 149,902.40 = 70,417.44 : x
  2. Step 2: Convert to fraction form
    108,725.60/149,902.40 = 70,417.44/x
  3. Step 3: Cross multiply
    108,725.60x = 149,902.40 × 70,417.44
  4. Step 4: Simplify right side
    108,725.60x = 10,555,743,257.86
  5. Step 5: Solve for x
    x = 10,555,743,257.86/108,725.60
  6. Step 6: Final answer
    x = 97,086.09

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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.