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Finding the Fourth Proportional to 152,888.75, 210,979.32 and 84,910.11

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Solution

The fourth proportional to 152,888.75, 210,979.32 and 84,910.11 is: 117,171.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,888.75 : 210,979.32 = 84,910.11 : x
  2. Step 2: Convert to fraction form
    152,888.75/210,979.32 = 84,910.11/x
  3. Step 3: Cross multiply
    152,888.75x = 210,979.32 × 84,910.11
  4. Step 4: Simplify right side
    152,888.75x = 17,914,276,159.34
  5. Step 5: Solve for x
    x = 17,914,276,159.34/152,888.75
  6. Step 6: Final answer
    x = 117,171.97

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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.