Home / 151,143.64-208,578.17-83,159.19

Finding the Fourth Proportional to 151,143.64, 208,578.17 and 83,159.19

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Solution

The fourth proportional to 151,143.64, 208,578.17 and 83,159.19 is: 114,759.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,143.64 : 208,578.17 = 83,159.19 : x
  2. Step 2: Convert to fraction form
    151,143.64/208,578.17 = 83,159.19/x
  3. Step 3: Cross multiply
    151,143.64x = 208,578.17 × 83,159.19
  4. Step 4: Simplify right side
    151,143.64x = 17,345,191,876.78
  5. Step 5: Solve for x
    x = 17,345,191,876.78/151,143.64
  6. Step 6: Final answer
    x = 114,759.66

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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.