Home / 99,722.34-137,601.18-57,272.67

Finding the Fourth Proportional to 99,722.34, 137,601.18 and 57,272.67

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Solution

The fourth proportional to 99,722.34, 137,601.18 and 57,272.67 is: 79,027.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,722.34 : 137,601.18 = 57,272.67 : x
  2. Step 2: Convert to fraction form
    99,722.34/137,601.18 = 57,272.67/x
  3. Step 3: Cross multiply
    99,722.34x = 137,601.18 × 57,272.67
  4. Step 4: Simplify right side
    99,722.34x = 7,880,786,973.75
  5. Step 5: Solve for x
    x = 7,880,786,973.75/99,722.34
  6. Step 6: Final answer
    x = 79,027.30

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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.