Home / 208,495.08-287,723.70-113,001.66

Finding the Fourth Proportional to 208,495.08, 287,723.70 and 113,001.66

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Solution

The fourth proportional to 208,495.08, 287,723.70 and 113,001.66 is: 155,942.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,495.08 : 287,723.70 = 113,001.66 : x
  2. Step 2: Convert to fraction form
    208,495.08/287,723.70 = 113,001.66/x
  3. Step 3: Cross multiply
    208,495.08x = 287,723.70 × 113,001.66
  4. Step 4: Simplify right side
    208,495.08x = 32,513,255,721.34
  5. Step 5: Solve for x
    x = 32,513,255,721.34/208,495.08
  6. Step 6: Final answer
    x = 155,942.56

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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.