Home / 105,918.16-146,166.28-57,521.04

Finding the Fourth Proportional to 105,918.16, 146,166.28 and 57,521.04

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Solution

The fourth proportional to 105,918.16, 146,166.28 and 57,521.04 is: 79,378.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,918.16 : 146,166.28 = 57,521.04 : x
  2. Step 2: Convert to fraction form
    105,918.16/146,166.28 = 57,521.04/x
  3. Step 3: Cross multiply
    105,918.16x = 146,166.28 × 57,521.04
  4. Step 4: Simplify right side
    105,918.16x = 8,407,636,438.53
  5. Step 5: Solve for x
    x = 8,407,636,438.53/105,918.16
  6. Step 6: Final answer
    x = 79,378.61

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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.