Home / 103,623.10-155,511.45-68,551.10

Finding the Fourth Proportional to 103,623.10, 155,511.45 and 68,551.10

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Solution

The fourth proportional to 103,623.10, 155,511.45 and 68,551.10 is: 102,877.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,623.10 : 155,511.45 = 68,551.10 : x
  2. Step 2: Convert to fraction form
    103,623.10/155,511.45 = 68,551.10/x
  3. Step 3: Cross multiply
    103,623.10x = 155,511.45 × 68,551.10
  4. Step 4: Simplify right side
    103,623.10x = 10,660,480,960.10
  5. Step 5: Solve for x
    x = 10,660,480,960.10/103,623.10
  6. Step 6: Final answer
    x = 102,877.46

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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.