Home / 230,123.52-317,550.24-128,141.28

Finding the Fourth Proportional to 230,123.52, 317,550.24 and 128,141.28

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Solution

The fourth proportional to 230,123.52, 317,550.24 and 128,141.28 is: 176,823.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,123.52 : 317,550.24 = 128,141.28 : x
  2. Step 2: Convert to fraction form
    230,123.52/317,550.24 = 128,141.28/x
  3. Step 3: Cross multiply
    230,123.52x = 317,550.24 × 128,141.28
  4. Step 4: Simplify right side
    230,123.52x = 40,691,294,217.91
  5. Step 5: Solve for x
    x = 40,691,294,217.91/230,123.52
  6. Step 6: Final answer
    x = 176,823.71

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1.5x scale

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.