Home / 103,786.19-155,665-40,562.45

Finding the Fourth Proportional to 103,786.19, 155,665 and 40,562.45

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Solution

The fourth proportional to 103,786.19, 155,665 and 40,562.45 is: 60,838.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,786.19 : 155,665 = 40,562.45 : x
  2. Step 2: Convert to fraction form
    103,786.19/155,665 = 40,562.45/x
  3. Step 3: Cross multiply
    103,786.19x = 155,665 × 40,562.45
  4. Step 4: Simplify right side
    103,786.19x = 6,314,153,779.25
  5. Step 5: Solve for x
    x = 6,314,153,779.25/103,786.19
  6. Step 6: Final answer
    x = 60,838.09

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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.