Home / 122,486.10-183,729.15-75,246.90

Finding the Fourth Proportional to 122,486.10, 183,729.15 and 75,246.90

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Solution

The fourth proportional to 122,486.10, 183,729.15 and 75,246.90 is: 112,870.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,486.10 : 183,729.15 = 75,246.90 : x
  2. Step 2: Convert to fraction form
    122,486.10/183,729.15 = 75,246.90/x
  3. Step 3: Cross multiply
    122,486.10x = 183,729.15 × 75,246.90
  4. Step 4: Simplify right side
    122,486.10x = 13,825,048,977.14
  5. Step 5: Solve for x
    x = 13,825,048,977.14/122,486.10
  6. Step 6: Final answer
    x = 112,870.35

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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.