Home / 109,586.81-151,228.30-61,189.48

Finding the Fourth Proportional to 109,586.81, 151,228.30 and 61,189.48

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Solution

The fourth proportional to 109,586.81, 151,228.30 and 61,189.48 is: 84,440.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,586.81 : 151,228.30 = 61,189.48 : x
  2. Step 2: Convert to fraction form
    109,586.81/151,228.30 = 61,189.48/x
  3. Step 3: Cross multiply
    109,586.81x = 151,228.30 × 61,189.48
  4. Step 4: Simplify right side
    109,586.81x = 9,253,580,338.42
  5. Step 5: Solve for x
    x = 9,253,580,338.42/109,586.81
  6. Step 6: Final answer
    x = 84,440.64

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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.