Home / 103,700.28-155,610.84-43,725.08

Finding the Fourth Proportional to 103,700.28, 155,610.84 and 43,725.08

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Solution

The fourth proportional to 103,700.28, 155,610.84 and 43,725.08 is: 65,613.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,700.28 : 155,610.84 = 43,725.08 : x
  2. Step 2: Convert to fraction form
    103,700.28/155,610.84 = 43,725.08/x
  3. Step 3: Cross multiply
    103,700.28x = 155,610.84 × 43,725.08
  4. Step 4: Simplify right side
    103,700.28x = 6,804,096,427.87
  5. Step 5: Solve for x
    x = 6,804,096,427.87/103,700.28
  6. Step 6: Final answer
    x = 65,613.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.