Home / 139,822.98-209,699.22-39,983.70

Finding the Fourth Proportional to 139,822.98, 209,699.22 and 39,983.70

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Solution

The fourth proportional to 139,822.98, 209,699.22 and 39,983.70 is: 59,965.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,822.98 : 209,699.22 = 39,983.70 : x
  2. Step 2: Convert to fraction form
    139,822.98/209,699.22 = 39,983.70/x
  3. Step 3: Cross multiply
    139,822.98x = 209,699.22 × 39,983.70
  4. Step 4: Simplify right side
    139,822.98x = 8,384,550,702.71
  5. Step 5: Solve for x
    x = 8,384,550,702.71/139,822.98
  6. Step 6: Final answer
    x = 59,965.47

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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.