Home / 170,721.43-235,675.29-99,087.61

Finding the Fourth Proportional to 170,721.43, 235,675.29 and 99,087.61

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Solution

The fourth proportional to 170,721.43, 235,675.29 and 99,087.61 is: 136,787.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,721.43 : 235,675.29 = 99,087.61 : x
  2. Step 2: Convert to fraction form
    170,721.43/235,675.29 = 99,087.61/x
  3. Step 3: Cross multiply
    170,721.43x = 235,675.29 × 99,087.61
  4. Step 4: Simplify right side
    170,721.43x = 23,352,501,222.16
  5. Step 5: Solve for x
    x = 23,352,501,222.16/170,721.43
  6. Step 6: Final answer
    x = 136,787.17

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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.