Home / 213,715.94-320,323.48-118,901.39

Finding the Fourth Proportional to 213,715.94, 320,323.48 and 118,901.39

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Solution

The fourth proportional to 213,715.94, 320,323.48 and 118,901.39 is: 178,212.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,715.94 : 320,323.48 = 118,901.39 : x
  2. Step 2: Convert to fraction form
    213,715.94/320,323.48 = 118,901.39/x
  3. Step 3: Cross multiply
    213,715.94x = 320,323.48 × 118,901.39
  4. Step 4: Simplify right side
    213,715.94x = 38,086,905,122.77
  5. Step 5: Solve for x
    x = 38,086,905,122.77/213,715.94
  6. Step 6: Final answer
    x = 178,212.75

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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.