Home / 103,488.05-155,202.09-40,294.10

Finding the Fourth Proportional to 103,488.05, 155,202.09 and 40,294.10

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Solution

The fourth proportional to 103,488.05, 155,202.09 and 40,294.10 is: 60,429.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,488.05 : 155,202.09 = 40,294.10 : x
  2. Step 2: Convert to fraction form
    103,488.05/155,202.09 = 40,294.10/x
  3. Step 3: Cross multiply
    103,488.05x = 155,202.09 × 40,294.10
  4. Step 4: Simplify right side
    103,488.05x = 6,253,728,534.67
  5. Step 5: Solve for x
    x = 6,253,728,534.67/103,488.05
  6. Step 6: Final answer
    x = 60,429.48

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1.5x scale

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.