Home / 103,491.20-155,206.75-40,297.20

Finding the Fourth Proportional to 103,491.20, 155,206.75 and 40,297.20

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Solution

The fourth proportional to 103,491.20, 155,206.75 and 40,297.20 is: 60,434.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,491.20 : 155,206.75 = 40,297.20 : x
  2. Step 2: Convert to fraction form
    103,491.20/155,206.75 = 40,297.20/x
  3. Step 3: Cross multiply
    103,491.20x = 155,206.75 × 40,297.20
  4. Step 4: Simplify right side
    103,491.20x = 6,254,397,446.10
  5. Step 5: Solve for x
    x = 6,254,397,446.10/103,491.20
  6. Step 6: Final answer
    x = 60,434.10

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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.