Home / 97,742.28-146,621.64-31,191.84

Finding the Fourth Proportional to 97,742.28, 146,621.64 and 31,191.84

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Solution

The fourth proportional to 97,742.28, 146,621.64 and 31,191.84 is: 46,790.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,742.28 : 146,621.64 = 31,191.84 : x
  2. Step 2: Convert to fraction form
    97,742.28/146,621.64 = 31,191.84/x
  3. Step 3: Cross multiply
    97,742.28x = 146,621.64 × 31,191.84
  4. Step 4: Simplify right side
    97,742.28x = 4,573,398,735.42
  5. Step 5: Solve for x
    x = 4,573,398,735.42/97,742.28
  6. Step 6: Final answer
    x = 46,790.38

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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.