Home / 83,216.12-114,596.35-72,309.67

Finding the Fourth Proportional to 83,216.12, 114,596.35 and 72,309.67

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Solution

The fourth proportional to 83,216.12, 114,596.35 and 72,309.67 is: 99,577.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,216.12 : 114,596.35 = 72,309.67 : x
  2. Step 2: Convert to fraction form
    83,216.12/114,596.35 = 72,309.67/x
  3. Step 3: Cross multiply
    83,216.12x = 114,596.35 × 72,309.67
  4. Step 4: Simplify right side
    83,216.12x = 8,286,423,784.44
  5. Step 5: Solve for x
    x = 8,286,423,784.44/83,216.12
  6. Step 6: Final answer
    x = 99,577.15

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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.