Home / 133,068.90-199,603.35-131,319.30

Finding the Fourth Proportional to 133,068.90, 199,603.35 and 131,319.30

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Solution

The fourth proportional to 133,068.90, 199,603.35 and 131,319.30 is: 196,978.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,068.90 : 199,603.35 = 131,319.30 : x
  2. Step 2: Convert to fraction form
    133,068.90/199,603.35 = 131,319.30/x
  3. Step 3: Cross multiply
    133,068.90x = 199,603.35 × 131,319.30
  4. Step 4: Simplify right side
    133,068.90x = 26,211,772,199.66
  5. Step 5: Solve for x
    x = 26,211,772,199.66/133,068.90
  6. Step 6: Final answer
    x = 196,978.95

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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.