Home / 108,610.72-149,743.08-70,302.40

Finding the Fourth Proportional to 108,610.72, 149,743.08 and 70,302.40

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Solution

The fourth proportional to 108,610.72, 149,743.08 and 70,302.40 is: 96,926.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,610.72 : 149,743.08 = 70,302.40 : x
  2. Step 2: Convert to fraction form
    108,610.72/149,743.08 = 70,302.40/x
  3. Step 3: Cross multiply
    108,610.72x = 149,743.08 × 70,302.40
  4. Step 4: Simplify right side
    108,610.72x = 10,527,297,907.39
  5. Step 5: Solve for x
    x = 10,527,297,907.39/108,610.72
  6. Step 6: Final answer
    x = 96,926.88

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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.