Home / 139,233.12-208,577.52-68,899.20

Finding the Fourth Proportional to 139,233.12, 208,577.52 and 68,899.20

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Solution

The fourth proportional to 139,233.12, 208,577.52 and 68,899.20 is: 103,214.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,233.12 : 208,577.52 = 68,899.20 : x
  2. Step 2: Convert to fraction form
    139,233.12/208,577.52 = 68,899.20/x
  3. Step 3: Cross multiply
    139,233.12x = 208,577.52 × 68,899.20
  4. Step 4: Simplify right side
    139,233.12x = 14,370,824,265.98
  5. Step 5: Solve for x
    x = 14,370,824,265.98/139,233.12
  6. Step 6: Final answer
    x = 103,214.12

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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.