Home / 155,362.12-233,146.92-85,290.64

Finding the Fourth Proportional to 155,362.12, 233,146.92 and 85,290.64

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Solution

The fourth proportional to 155,362.12, 233,146.92 and 85,290.64 is: 127,992.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,362.12 : 233,146.92 = 85,290.64 : x
  2. Step 2: Convert to fraction form
    155,362.12/233,146.92 = 85,290.64/x
  3. Step 3: Cross multiply
    155,362.12x = 233,146.92 × 85,290.64
  4. Step 4: Simplify right side
    155,362.12x = 19,885,250,020.83
  5. Step 5: Solve for x
    x = 19,885,250,020.83/155,362.12
  6. Step 6: Final answer
    x = 127,992.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.