Home / 213,897.05-321,160.98-119,312.03

Finding the Fourth Proportional to 213,897.05, 321,160.98 and 119,312.03

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Solution

The fourth proportional to 213,897.05, 321,160.98 and 119,312.03 is: 179,143.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,897.05 : 321,160.98 = 119,312.03 : x
  2. Step 2: Convert to fraction form
    213,897.05/321,160.98 = 119,312.03/x
  3. Step 3: Cross multiply
    213,897.05x = 321,160.98 × 119,312.03
  4. Step 4: Simplify right side
    213,897.05x = 38,318,368,480.59
  5. Step 5: Solve for x
    x = 38,318,368,480.59/213,897.05
  6. Step 6: Final answer
    x = 179,143.98

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1.5x scale

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.