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Finding the Fourth Proportional to 152,345.24, 210,171.24 and 91,881.48

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Solution

The fourth proportional to 152,345.24, 210,171.24 and 91,881.48 is: 126,757.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,345.24 : 210,171.24 = 91,881.48 : x
  2. Step 2: Convert to fraction form
    152,345.24/210,171.24 = 91,881.48/x
  3. Step 3: Cross multiply
    152,345.24x = 210,171.24 × 91,881.48
  4. Step 4: Simplify right side
    152,345.24x = 19,310,844,584.64
  5. Step 5: Solve for x
    x = 19,310,844,584.64/152,345.24
  6. Step 6: Final answer
    x = 126,757.12

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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.