Home / 316,153.13-474,171.77-91,458.32

Finding the Fourth Proportional to 316,153.13, 474,171.77 and 91,458.32

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Solution

The fourth proportional to 316,153.13, 474,171.77 and 91,458.32 is: 137,170.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,153.13 : 474,171.77 = 91,458.32 : x
  2. Step 2: Convert to fraction form
    316,153.13/474,171.77 = 91,458.32/x
  3. Step 3: Cross multiply
    316,153.13x = 474,171.77 × 91,458.32
  4. Step 4: Simplify right side
    316,153.13x = 43,366,951,333.41
  5. Step 5: Solve for x
    x = 43,366,951,333.41/316,153.13
  6. Step 6: Final answer
    x = 137,170.72

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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.