Home / 185,089.03-255,421.29-100,205.35

Finding the Fourth Proportional to 185,089.03, 255,421.29 and 100,205.35

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Solution

The fourth proportional to 185,089.03, 255,421.29 and 100,205.35 is: 138,282.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,089.03 : 255,421.29 = 100,205.35 : x
  2. Step 2: Convert to fraction form
    185,089.03/255,421.29 = 100,205.35/x
  3. Step 3: Cross multiply
    185,089.03x = 255,421.29 × 100,205.35
  4. Step 4: Simplify right side
    185,089.03x = 25,594,579,761.90
  5. Step 5: Solve for x
    x = 25,594,579,761.90/185,089.03
  6. Step 6: Final answer
    x = 138,282.53

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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.