Home / 185,088.78-255,422.58-100,205.82

Finding the Fourth Proportional to 185,088.78, 255,422.58 and 100,205.82

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Solution

The fourth proportional to 185,088.78, 255,422.58 and 100,205.82 is: 138,284.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,088.78 : 255,422.58 = 100,205.82 : x
  2. Step 2: Convert to fraction form
    185,088.78/255,422.58 = 100,205.82/x
  3. Step 3: Cross multiply
    185,088.78x = 255,422.58 × 100,205.82
  4. Step 4: Simplify right side
    185,088.78x = 25,594,829,075.42
  5. Step 5: Solve for x
    x = 25,594,829,075.42/185,088.78
  6. Step 6: Final answer
    x = 138,284.07

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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.