Home / 297,064.38-445,611.69-86,718.18

Finding the Fourth Proportional to 297,064.38, 445,611.69 and 86,718.18

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Solution

The fourth proportional to 297,064.38, 445,611.69 and 86,718.18 is: 130,081.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,064.38 : 445,611.69 = 86,718.18 : x
  2. Step 2: Convert to fraction form
    297,064.38/445,611.69 = 86,718.18/x
  3. Step 3: Cross multiply
    297,064.38x = 445,611.69 × 86,718.18
  4. Step 4: Simplify right side
    297,064.38x = 38,642,634,743.52
  5. Step 5: Solve for x
    x = 38,642,634,743.52/297,064.38
  6. Step 6: Final answer
    x = 130,081.68

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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.