Home / 105,746.13-158,619.20-61,680.51

Finding the Fourth Proportional to 105,746.13, 158,619.20 and 61,680.51

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Solution

The fourth proportional to 105,746.13, 158,619.20 and 61,680.51 is: 92,520.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,746.13 : 158,619.20 = 61,680.51 : x
  2. Step 2: Convert to fraction form
    105,746.13/158,619.20 = 61,680.51/x
  3. Step 3: Cross multiply
    105,746.13x = 158,619.20 × 61,680.51
  4. Step 4: Simplify right side
    105,746.13x = 9,783,712,843.39
  5. Step 5: Solve for x
    x = 9,783,712,843.39/105,746.13
  6. Step 6: Final answer
    x = 92,520.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.