Home / 154,743.12-213,534.82-85,826.08

Finding the Fourth Proportional to 154,743.12, 213,534.82 and 85,826.08

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Solution

The fourth proportional to 154,743.12, 213,534.82 and 85,826.08 is: 118,434.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,743.12 : 213,534.82 = 85,826.08 : x
  2. Step 2: Convert to fraction form
    154,743.12/213,534.82 = 85,826.08/x
  3. Step 3: Cross multiply
    154,743.12x = 213,534.82 × 85,826.08
  4. Step 4: Simplify right side
    154,743.12x = 18,326,856,544.11
  5. Step 5: Solve for x
    x = 18,326,856,544.11/154,743.12
  6. Step 6: Final answer
    x = 118,434.06

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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.