Home / 121,584.76-167,804.58-87,705.52

Finding the Fourth Proportional to 121,584.76, 167,804.58 and 87,705.52

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Solution

The fourth proportional to 121,584.76, 167,804.58 and 87,705.52 is: 121,046.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,584.76 : 167,804.58 = 87,705.52 : x
  2. Step 2: Convert to fraction form
    121,584.76/167,804.58 = 87,705.52/x
  3. Step 3: Cross multiply
    121,584.76x = 167,804.58 × 87,705.52
  4. Step 4: Simplify right side
    121,584.76x = 14,717,387,947.28
  5. Step 5: Solve for x
    x = 14,717,387,947.28/121,584.76
  6. Step 6: Final answer
    x = 121,046.32

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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.