Home / 231,938.64-320,045.45-136,410.48

Finding the Fourth Proportional to 231,938.64, 320,045.45 and 136,410.48

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Solution

The fourth proportional to 231,938.64, 320,045.45 and 136,410.48 is: 188,228.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,938.64 : 320,045.45 = 136,410.48 : x
  2. Step 2: Convert to fraction form
    231,938.64/320,045.45 = 136,410.48/x
  3. Step 3: Cross multiply
    231,938.64x = 320,045.45 × 136,410.48
  4. Step 4: Simplify right side
    231,938.64x = 43,657,552,774.26
  5. Step 5: Solve for x
    x = 43,657,552,774.26/231,938.64
  6. Step 6: Final answer
    x = 188,228.89

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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.