Home / 185,269.72-255,672.45-100,386.76

Finding the Fourth Proportional to 185,269.72, 255,672.45 and 100,386.76

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Solution

The fourth proportional to 185,269.72, 255,672.45 and 100,386.76 is: 138,533.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,269.72 : 255,672.45 = 100,386.76 : x
  2. Step 2: Convert to fraction form
    185,269.72/255,672.45 = 100,386.76/x
  3. Step 3: Cross multiply
    185,269.72x = 255,672.45 × 100,386.76
  4. Step 4: Simplify right side
    185,269.72x = 25,666,128,876.76
  5. Step 5: Solve for x
    x = 25,666,128,876.76/185,269.72
  6. Step 6: Final answer
    x = 138,533.86

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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.