Home / 136,317.19-204,310.01-72,981.67

Finding the Fourth Proportional to 136,317.19, 204,310.01 and 72,981.67

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Solution

The fourth proportional to 136,317.19, 204,310.01 and 72,981.67 is: 109,383.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,317.19 : 204,310.01 = 72,981.67 : x
  2. Step 2: Convert to fraction form
    136,317.19/204,310.01 = 72,981.67/x
  3. Step 3: Cross multiply
    136,317.19x = 204,310.01 × 72,981.67
  4. Step 4: Simplify right side
    136,317.19x = 14,910,885,362.61
  5. Step 5: Solve for x
    x = 14,910,885,362.61/136,317.19
  6. Step 6: Final answer
    x = 109,383.75

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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.