Home / 151,256-208,733.28-84,186.56

Finding the Fourth Proportional to 151,256, 208,733.28 and 84,186.56

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Solution

The fourth proportional to 151,256, 208,733.28 and 84,186.56 is: 116,177.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,256 : 208,733.28 = 84,186.56 : x
  2. Step 2: Convert to fraction form
    151,256/208,733.28 = 84,186.56/x
  3. Step 3: Cross multiply
    151,256x = 208,733.28 × 84,186.56
  4. Step 4: Simplify right side
    151,256x = 17,572,536,800.72
  5. Step 5: Solve for x
    x = 17,572,536,800.72/151,256
  6. Step 6: Final answer
    x = 116,177.45

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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.