Home / 208,588.87-287,850.05-113,095.34

Finding the Fourth Proportional to 208,588.87, 287,850.05 and 113,095.34

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Solution

The fourth proportional to 208,588.87, 287,850.05 and 113,095.34 is: 156,070.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,588.87 : 287,850.05 = 113,095.34 : x
  2. Step 2: Convert to fraction form
    208,588.87/287,850.05 = 113,095.34/x
  3. Step 3: Cross multiply
    208,588.87x = 287,850.05 × 113,095.34
  4. Step 4: Simplify right side
    208,588.87x = 32,554,499,408.75
  5. Step 5: Solve for x
    x = 32,554,499,408.75/208,588.87
  6. Step 6: Final answer
    x = 156,070.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.