Home / 103,640.10-155,551.28-61,467.45

Finding the Fourth Proportional to 103,640.10, 155,551.28 and 61,467.45

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Solution

The fourth proportional to 103,640.10, 155,551.28 and 61,467.45 is: 92,255.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,640.10 : 155,551.28 = 61,467.45 : x
  2. Step 2: Convert to fraction form
    103,640.10/155,551.28 = 61,467.45/x
  3. Step 3: Cross multiply
    103,640.10x = 155,551.28 × 61,467.45
  4. Step 4: Simplify right side
    103,640.10x = 9,561,340,525.84
  5. Step 5: Solve for x
    x = 9,561,340,525.84/103,640.10
  6. Step 6: Final answer
    x = 92,255.22

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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.