Home / 185,070.12-255,397.32-100,186.98

Finding the Fourth Proportional to 185,070.12, 255,397.32 and 100,186.98

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Solution

The fourth proportional to 185,070.12, 255,397.32 and 100,186.98 is: 138,258.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,070.12 : 255,397.32 = 100,186.98 : x
  2. Step 2: Convert to fraction form
    185,070.12/255,397.32 = 100,186.98/x
  3. Step 3: Cross multiply
    185,070.12x = 255,397.32 × 100,186.98
  4. Step 4: Simplify right side
    185,070.12x = 25,587,486,190.89
  5. Step 5: Solve for x
    x = 25,587,486,190.89/185,070.12
  6. Step 6: Final answer
    x = 138,258.33

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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.