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Finding the Fourth Proportional to 170,299.62, 235,013.54 and 98,721.21

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Solution

The fourth proportional to 170,299.62, 235,013.54 and 98,721.21 is: 136,235.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,299.62 : 235,013.54 = 98,721.21 : x
  2. Step 2: Convert to fraction form
    170,299.62/235,013.54 = 98,721.21/x
  3. Step 3: Cross multiply
    170,299.62x = 235,013.54 × 98,721.21
  4. Step 4: Simplify right side
    170,299.62x = 23,200,821,035.18
  5. Step 5: Solve for x
    x = 23,200,821,035.18/170,299.62
  6. Step 6: Final answer
    x = 136,235.31

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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.