Home / 185,458.16-255,943.05-103,785.72

Finding the Fourth Proportional to 185,458.16, 255,943.05 and 103,785.72

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Solution

The fourth proportional to 185,458.16, 255,943.05 and 103,785.72 is: 143,230.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,458.16 : 255,943.05 = 103,785.72 : x
  2. Step 2: Convert to fraction form
    185,458.16/255,943.05 = 103,785.72/x
  3. Step 3: Cross multiply
    185,458.16x = 255,943.05 × 103,785.72
  4. Step 4: Simplify right side
    185,458.16x = 26,563,233,723.25
  5. Step 5: Solve for x
    x = 26,563,233,723.25/185,458.16
  6. Step 6: Final answer
    x = 143,230.34

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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.