Home / 105,042.90-144,965.10-57,297.04

Finding the Fourth Proportional to 105,042.90, 144,965.10 and 57,297.04

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Solution

The fourth proportional to 105,042.90, 144,965.10 and 57,297.04 is: 79,073.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,042.90 : 144,965.10 = 57,297.04 : x
  2. Step 2: Convert to fraction form
    105,042.90/144,965.10 = 57,297.04/x
  3. Step 3: Cross multiply
    105,042.90x = 144,965.10 × 57,297.04
  4. Step 4: Simplify right side
    105,042.90x = 8,306,071,133.30
  5. Step 5: Solve for x
    x = 8,306,071,133.30/105,042.90
  6. Step 6: Final answer
    x = 79,073.13

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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.