Home / 136,225.64-188,017.41-90,204.11

Finding the Fourth Proportional to 136,225.64, 188,017.41 and 90,204.11

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Solution

The fourth proportional to 136,225.64, 188,017.41 and 90,204.11 is: 124,498.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,225.64 : 188,017.41 = 90,204.11 : x
  2. Step 2: Convert to fraction form
    136,225.64/188,017.41 = 90,204.11/x
  3. Step 3: Cross multiply
    136,225.64x = 188,017.41 × 90,204.11
  4. Step 4: Simplify right side
    136,225.64x = 16,959,943,765.60
  5. Step 5: Solve for x
    x = 16,959,943,765.60/136,225.64
  6. Step 6: Final answer
    x = 124,498.91

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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.