Home / 185,320.70-255,743-100,437.74

Finding the Fourth Proportional to 185,320.70, 255,743 and 100,437.74

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Solution

The fourth proportional to 185,320.70, 255,743 and 100,437.74 is: 138,604.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,320.70 : 255,743 = 100,437.74 : x
  2. Step 2: Convert to fraction form
    185,320.70/255,743 = 100,437.74/x
  3. Step 3: Cross multiply
    185,320.70x = 255,743 × 100,437.74
  4. Step 4: Simplify right side
    185,320.70x = 25,686,248,940.82
  5. Step 5: Solve for x
    x = 25,686,248,940.82/185,320.70
  6. Step 6: Final answer
    x = 138,604.32

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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.