Home / 148,390.15-204,809.31-136,434.55

Finding the Fourth Proportional to 148,390.15, 204,809.31 and 136,434.55

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Solution

The fourth proportional to 148,390.15, 204,809.31 and 136,434.55 is: 188,308.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,390.15 : 204,809.31 = 136,434.55 : x
  2. Step 2: Convert to fraction form
    148,390.15/204,809.31 = 136,434.55/x
  3. Step 3: Cross multiply
    148,390.15x = 204,809.31 × 136,434.55
  4. Step 4: Simplify right side
    148,390.15x = 27,943,066,045.66
  5. Step 5: Solve for x
    x = 27,943,066,045.66/148,390.15
  6. Step 6: Final answer
    x = 188,308.09

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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.