Home / 121,588.26-167,809.42-87,709.02

Finding the Fourth Proportional to 121,588.26, 167,809.42 and 87,709.02

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Solution

The fourth proportional to 121,588.26, 167,809.42 and 87,709.02 is: 121,051.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,588.26 : 167,809.42 = 87,709.02 : x
  2. Step 2: Convert to fraction form
    121,588.26/167,809.42 = 87,709.02/x
  3. Step 3: Cross multiply
    121,588.26x = 167,809.42 × 87,709.02
  4. Step 4: Simplify right side
    121,588.26x = 14,718,399,774.97
  5. Step 5: Solve for x
    x = 14,718,399,774.97/121,588.26
  6. Step 6: Final answer
    x = 121,051.16

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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.