Home / 170,081.40-255,145.55-57,731.45

Finding the Fourth Proportional to 170,081.40, 255,145.55 and 57,731.45

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Solution

The fourth proportional to 170,081.40, 255,145.55 and 57,731.45 is: 86,605.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,081.40 : 255,145.55 = 57,731.45 : x
  2. Step 2: Convert to fraction form
    170,081.40/255,145.55 = 57,731.45/x
  3. Step 3: Cross multiply
    170,081.40x = 255,145.55 × 57,731.45
  4. Step 4: Simplify right side
    170,081.40x = 14,729,920,998.16
  5. Step 5: Solve for x
    x = 14,729,920,998.16/170,081.40
  6. Step 6: Final answer
    x = 86,605.12

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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.