Home / 315,867.19-473,731.20-91,178.82

Finding the Fourth Proportional to 315,867.19, 473,731.20 and 91,178.82

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Solution

The fourth proportional to 315,867.19, 473,731.20 and 91,178.82 is: 136,748.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,867.19 : 473,731.20 = 91,178.82 : x
  2. Step 2: Convert to fraction form
    315,867.19/473,731.20 = 91,178.82/x
  3. Step 3: Cross multiply
    315,867.19x = 473,731.20 × 91,178.82
  4. Step 4: Simplify right side
    315,867.19x = 43,194,251,761.62
  5. Step 5: Solve for x
    x = 43,194,251,761.62/315,867.19
  6. Step 6: Final answer
    x = 136,748.15

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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.