Home / 208,451.51-287,557.44-131,841.59

Finding the Fourth Proportional to 208,451.51, 287,557.44 and 131,841.59

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Solution

The fourth proportional to 208,451.51, 287,557.44 and 131,841.59 is: 181,874.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,451.51 : 287,557.44 = 131,841.59 : x
  2. Step 2: Convert to fraction form
    208,451.51/287,557.44 = 131,841.59/x
  3. Step 3: Cross multiply
    208,451.51x = 287,557.44 × 131,841.59
  4. Step 4: Simplify right side
    208,451.51x = 37,912,028,668.14
  5. Step 5: Solve for x
    x = 37,912,028,668.14/208,451.51
  6. Step 6: Final answer
    x = 181,874.57

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1.5x scale

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.