Home / 208,623.30-287,901.96-113,130

Finding the Fourth Proportional to 208,623.30, 287,901.96 and 113,130

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Solution

The fourth proportional to 208,623.30, 287,901.96 and 113,130 is: 156,120.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,623.30 : 287,901.96 = 113,130 : x
  2. Step 2: Convert to fraction form
    208,623.30/287,901.96 = 113,130/x
  3. Step 3: Cross multiply
    208,623.30x = 287,901.96 × 113,130
  4. Step 4: Simplify right side
    208,623.30x = 32,570,348,169.15
  5. Step 5: Solve for x
    x = 32,570,348,169.15/208,623.30
  6. Step 6: Final answer
    x = 156,120.38

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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.