Home / 169,434.93-253,987.16-80,664.60

Finding the Fourth Proportional to 169,434.93, 253,987.16 and 80,664.60

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Solution

The fourth proportional to 169,434.93, 253,987.16 and 80,664.60 is: 120,918.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,434.93 : 253,987.16 = 80,664.60 : x
  2. Step 2: Convert to fraction form
    169,434.93/253,987.16 = 80,664.60/x
  3. Step 3: Cross multiply
    169,434.93x = 253,987.16 × 80,664.60
  4. Step 4: Simplify right side
    169,434.93x = 20,487,773,669.40
  5. Step 5: Solve for x
    x = 20,487,773,669.40/169,434.93
  6. Step 6: Final answer
    x = 120,918.24

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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.