Home / 103,686.30-155,490.57-44,491.50

Finding the Fourth Proportional to 103,686.30, 155,490.57 and 44,491.50

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Solution

The fourth proportional to 103,686.30, 155,490.57 and 44,491.50 is: 66,720.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,686.30 : 155,490.57 = 44,491.50 : x
  2. Step 2: Convert to fraction form
    103,686.30/155,490.57 = 44,491.50/x
  3. Step 3: Cross multiply
    103,686.30x = 155,490.57 × 44,491.50
  4. Step 4: Simplify right side
    103,686.30x = 6,918,008,695.16
  5. Step 5: Solve for x
    x = 6,918,008,695.16/103,686.30
  6. Step 6: Final answer
    x = 66,720.57

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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.