Home / 131,455.64-197,104.45-51,398.21

Finding the Fourth Proportional to 131,455.64, 197,104.45 and 51,398.21

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Solution

The fourth proportional to 131,455.64, 197,104.45 and 51,398.21 is: 77,066.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,455.64 : 197,104.45 = 51,398.21 : x
  2. Step 2: Convert to fraction form
    131,455.64/197,104.45 = 51,398.21/x
  3. Step 3: Cross multiply
    131,455.64x = 197,104.45 × 51,398.21
  4. Step 4: Simplify right side
    131,455.64x = 10,130,814,799.02
  5. Step 5: Solve for x
    x = 10,130,814,799.02/131,455.64
  6. Step 6: Final answer
    x = 77,066.42

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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.