Home / 103,638.30-155,457.45-44,463.90

Finding the Fourth Proportional to 103,638.30, 155,457.45 and 44,463.90

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Solution

The fourth proportional to 103,638.30, 155,457.45 and 44,463.90 is: 66,695.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,638.30 : 155,457.45 = 44,463.90 : x
  2. Step 2: Convert to fraction form
    103,638.30/155,457.45 = 44,463.90/x
  3. Step 3: Cross multiply
    103,638.30x = 155,457.45 × 44,463.90
  4. Step 4: Simplify right side
    103,638.30x = 6,912,244,511.06
  5. Step 5: Solve for x
    x = 6,912,244,511.06/103,638.30
  6. Step 6: Final answer
    x = 66,695.85

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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.