Home / 114,742.90-158,319.32-69,419.76

Finding the Fourth Proportional to 114,742.90, 158,319.32 and 69,419.76

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Solution

The fourth proportional to 114,742.90, 158,319.32 and 69,419.76 is: 95,783.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,742.90 : 158,319.32 = 69,419.76 : x
  2. Step 2: Convert to fraction form
    114,742.90/158,319.32 = 69,419.76/x
  3. Step 3: Cross multiply
    114,742.90x = 158,319.32 × 69,419.76
  4. Step 4: Simplify right side
    114,742.90x = 10,990,489,197.76
  5. Step 5: Solve for x
    x = 10,990,489,197.76/114,742.90
  6. Step 6: Final answer
    x = 95,783.61

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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.