Home / 218,952.37-302,156.45-122,155.41

Finding the Fourth Proportional to 218,952.37, 302,156.45 and 122,155.41

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Solution

The fourth proportional to 218,952.37, 302,156.45 and 122,155.41 is: 168,575.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,952.37 : 302,156.45 = 122,155.41 : x
  2. Step 2: Convert to fraction form
    218,952.37/302,156.45 = 122,155.41/x
  3. Step 3: Cross multiply
    218,952.37x = 302,156.45 × 122,155.41
  4. Step 4: Simplify right side
    218,952.37x = 36,910,044,423.12
  5. Step 5: Solve for x
    x = 36,910,044,423.12/218,952.37
  6. Step 6: Final answer
    x = 168,575.68

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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.