Home / 213,897.83-321,162.14-119,312.81

Finding the Fourth Proportional to 213,897.83, 321,162.14 and 119,312.81

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Solution

The fourth proportional to 213,897.83, 321,162.14 and 119,312.81 is: 179,145.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,897.83 : 321,162.14 = 119,312.81 : x
  2. Step 2: Convert to fraction form
    213,897.83/321,162.14 = 119,312.81/x
  3. Step 3: Cross multiply
    213,897.83x = 321,162.14 × 119,312.81
  4. Step 4: Simplify right side
    213,897.83x = 38,318,756,081.48
  5. Step 5: Solve for x
    x = 38,318,756,081.48/213,897.83
  6. Step 6: Final answer
    x = 179,145.14

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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.