Home / 233,123.30-321,679.90-131,145.32

Finding the Fourth Proportional to 233,123.30, 321,679.90 and 131,145.32

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Solution

The fourth proportional to 233,123.30, 321,679.90 and 131,145.32 is: 180,963.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    233,123.30 : 321,679.90 = 131,145.32 : x
  2. Step 2: Convert to fraction form
    233,123.30/321,679.90 = 131,145.32/x
  3. Step 3: Cross multiply
    233,123.30x = 321,679.90 × 131,145.32
  4. Step 4: Simplify right side
    233,123.30x = 42,186,811,486.81
  5. Step 5: Solve for x
    x = 42,186,811,486.81/233,123.30
  6. Step 6: Final answer
    x = 180,963.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.