Home / 170,772.96-235,665.81-99,170.58

Finding the Fourth Proportional to 170,772.96, 235,665.81 and 99,170.58

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Solution

The fourth proportional to 170,772.96, 235,665.81 and 99,170.58 is: 136,854.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,772.96 : 235,665.81 = 99,170.58 : x
  2. Step 2: Convert to fraction form
    170,772.96/235,665.81 = 99,170.58/x
  3. Step 3: Cross multiply
    170,772.96x = 235,665.81 × 99,170.58
  4. Step 4: Simplify right side
    170,772.96x = 23,371,115,063.87
  5. Step 5: Solve for x
    x = 23,371,115,063.87/170,772.96
  6. Step 6: Final answer
    x = 136,854.89

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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.