Home / 131,419.60-197,145.81-51,447.24

Finding the Fourth Proportional to 131,419.60, 197,145.81 and 51,447.24

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Solution

The fourth proportional to 131,419.60, 197,145.81 and 51,447.24 is: 77,177.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,419.60 : 197,145.81 = 51,447.24 : x
  2. Step 2: Convert to fraction form
    131,419.60/197,145.81 = 51,447.24/x
  3. Step 3: Cross multiply
    131,419.60x = 197,145.81 × 51,447.24
  4. Step 4: Simplify right side
    131,419.60x = 10,142,607,802.06
  5. Step 5: Solve for x
    x = 10,142,607,802.06/131,419.60
  6. Step 6: Final answer
    x = 77,177.28

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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.