Home / 208,692.64-287,988.06-113,196.16

Finding the Fourth Proportional to 208,692.64, 287,988.06 and 113,196.16

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Solution

The fourth proportional to 208,692.64, 287,988.06 and 113,196.16 is: 156,206.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,692.64 : 287,988.06 = 113,196.16 : x
  2. Step 2: Convert to fraction form
    208,692.64/287,988.06 = 113,196.16/x
  3. Step 3: Cross multiply
    208,692.64x = 287,988.06 × 113,196.16
  4. Step 4: Simplify right side
    208,692.64x = 32,599,142,517.85
  5. Step 5: Solve for x
    x = 32,599,142,517.85/208,692.64
  6. Step 6: Final answer
    x = 156,206.48

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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.