Home / 185,160.77-255,521.63-100,278.17

Finding the Fourth Proportional to 185,160.77, 255,521.63 and 100,278.17

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Solution

The fourth proportional to 185,160.77, 255,521.63 and 100,278.17 is: 138,383.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,160.77 : 255,521.63 = 100,278.17 : x
  2. Step 2: Convert to fraction form
    185,160.77/255,521.63 = 100,278.17/x
  3. Step 3: Cross multiply
    185,160.77x = 255,521.63 × 100,278.17
  4. Step 4: Simplify right side
    185,160.77x = 25,623,240,950.43
  5. Step 5: Solve for x
    x = 25,623,240,950.43/185,160.77
  6. Step 6: Final answer
    x = 138,383.75

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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.