Home / 101,845.12-152,603.52-55,120

Finding the Fourth Proportional to 101,845.12, 152,603.52 and 55,120

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Solution

The fourth proportional to 101,845.12, 152,603.52 and 55,120 is: 82,591.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,845.12 : 152,603.52 = 55,120 : x
  2. Step 2: Convert to fraction form
    101,845.12/152,603.52 = 55,120/x
  3. Step 3: Cross multiply
    101,845.12x = 152,603.52 × 55,120
  4. Step 4: Simplify right side
    101,845.12x = 8,411,506,022.40
  5. Step 5: Solve for x
    x = 8,411,506,022.40/101,845.12
  6. Step 6: Final answer
    x = 82,591.15

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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.