Home / 169,327.60-254,099.40-80,681.20

Finding the Fourth Proportional to 169,327.60, 254,099.40 and 80,681.20

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Solution

The fourth proportional to 169,327.60, 254,099.40 and 80,681.20 is: 121,073.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,327.60 : 254,099.40 = 80,681.20 : x
  2. Step 2: Convert to fraction form
    169,327.60/254,099.40 = 80,681.20/x
  3. Step 3: Cross multiply
    169,327.60x = 254,099.40 × 80,681.20
  4. Step 4: Simplify right side
    169,327.60x = 20,501,044,511.28
  5. Step 5: Solve for x
    x = 20,501,044,511.28/169,327.60
  6. Step 6: Final answer
    x = 121,073.26

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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.