Home / 185,930.19-256,573.85-105,358.68

Finding the Fourth Proportional to 185,930.19, 256,573.85 and 105,358.68

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Solution

The fourth proportional to 185,930.19, 256,573.85 and 105,358.68 is: 145,389.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,930.19 : 256,573.85 = 105,358.68 : x
  2. Step 2: Convert to fraction form
    185,930.19/256,573.85 = 105,358.68/x
  3. Step 3: Cross multiply
    185,930.19x = 256,573.85 × 105,358.68
  4. Step 4: Simplify right side
    185,930.19x = 27,032,281,631.72
  5. Step 5: Solve for x
    x = 27,032,281,631.72/185,930.19
  6. Step 6: Final answer
    x = 145,389.42

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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.