Home / 112,726.40-168,283.71-108,783.86

Finding the Fourth Proportional to 112,726.40, 168,283.71 and 108,783.86

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Solution

The fourth proportional to 112,726.40, 168,283.71 and 108,783.86 is: 162,398.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,726.40 : 168,283.71 = 108,783.86 : x
  2. Step 2: Convert to fraction form
    112,726.40/168,283.71 = 108,783.86/x
  3. Step 3: Cross multiply
    112,726.40x = 168,283.71 × 108,783.86
  4. Step 4: Simplify right side
    112,726.40x = 18,306,550,707.50
  5. Step 5: Solve for x
    x = 18,306,550,707.50/112,726.40
  6. Step 6: Final answer
    x = 162,398.09

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.