Home / 187,320.64-258,519.72-111,867.52

Finding the Fourth Proportional to 187,320.64, 258,519.72 and 111,867.52

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Solution

The fourth proportional to 187,320.64, 258,519.72 and 111,867.52 is: 154,387.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,320.64 : 258,519.72 = 111,867.52 : x
  2. Step 2: Convert to fraction form
    187,320.64/258,519.72 = 111,867.52/x
  3. Step 3: Cross multiply
    187,320.64x = 258,519.72 × 111,867.52
  4. Step 4: Simplify right side
    187,320.64x = 28,919,959,947.49
  5. Step 5: Solve for x
    x = 28,919,959,947.49/187,320.64
  6. Step 6: Final answer
    x = 154,387.47

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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.