Home / 138,202.10-190,714.29-77,773.94

Finding the Fourth Proportional to 138,202.10, 190,714.29 and 77,773.94

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Solution

The fourth proportional to 138,202.10, 190,714.29 and 77,773.94 is: 107,325.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,202.10 : 190,714.29 = 77,773.94 : x
  2. Step 2: Convert to fraction form
    138,202.10/190,714.29 = 77,773.94/x
  3. Step 3: Cross multiply
    138,202.10x = 190,714.29 × 77,773.94
  4. Step 4: Simplify right side
    138,202.10x = 14,832,601,747.60
  5. Step 5: Solve for x
    x = 14,832,601,747.60/138,202.10
  6. Step 6: Final answer
    x = 107,325.44

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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.