Home / 185,355.91-255,784.29-100,471.15

Finding the Fourth Proportional to 185,355.91, 255,784.29 and 100,471.15

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Solution

The fourth proportional to 185,355.91, 255,784.29 and 100,471.15 is: 138,646.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,355.91 : 255,784.29 = 100,471.15 : x
  2. Step 2: Convert to fraction form
    185,355.91/255,784.29 = 100,471.15/x
  3. Step 3: Cross multiply
    185,355.91x = 255,784.29 × 100,471.15
  4. Step 4: Simplify right side
    185,355.91x = 25,698,941,768.23
  5. Step 5: Solve for x
    x = 25,698,941,768.23/185,355.91
  6. Step 6: Final answer
    x = 138,646.47

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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.