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Finding the Fourth Proportional to 103,477.10, 155,215.65 and 95,603.90

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Solution

The fourth proportional to 103,477.10, 155,215.65 and 95,603.90 is: 143,405.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,477.10 : 155,215.65 = 95,603.90 : x
  2. Step 2: Convert to fraction form
    103,477.10/155,215.65 = 95,603.90/x
  3. Step 3: Cross multiply
    103,477.10x = 155,215.65 × 95,603.90
  4. Step 4: Simplify right side
    103,477.10x = 14,839,221,481.04
  5. Step 5: Solve for x
    x = 14,839,221,481.04/103,477.10
  6. Step 6: Final answer
    x = 143,405.85

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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.