Home / 103,488.20-155,232.30-75,603.95

Finding the Fourth Proportional to 103,488.20, 155,232.30 and 75,603.95

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Solution

The fourth proportional to 103,488.20, 155,232.30 and 75,603.95 is: 113,405.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,488.20 : 155,232.30 = 75,603.95 : x
  2. Step 2: Convert to fraction form
    103,488.20/155,232.30 = 75,603.95/x
  3. Step 3: Cross multiply
    103,488.20x = 155,232.30 × 75,603.95
  4. Step 4: Simplify right side
    103,488.20x = 11,736,175,047.59
  5. Step 5: Solve for x
    x = 11,736,175,047.59/103,488.20
  6. Step 6: Final answer
    x = 113,405.93

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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.