Home / 145,027.80-217,541.70-115,284.60

Finding the Fourth Proportional to 145,027.80, 217,541.70 and 115,284.60

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Solution

The fourth proportional to 145,027.80, 217,541.70 and 115,284.60 is: 172,926.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,027.80 : 217,541.70 = 115,284.60 : x
  2. Step 2: Convert to fraction form
    145,027.80/217,541.70 = 115,284.60/x
  3. Step 3: Cross multiply
    145,027.80x = 217,541.70 × 115,284.60
  4. Step 4: Simplify right side
    145,027.80x = 25,079,207,867.82
  5. Step 5: Solve for x
    x = 25,079,207,867.82/145,027.80
  6. Step 6: Final answer
    x = 172,926.90

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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.