Home / 176,387.34-243,321.21-111,742.53

Finding the Fourth Proportional to 176,387.34, 243,321.21 and 111,742.53

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Solution

The fourth proportional to 176,387.34, 243,321.21 and 111,742.53 is: 154,145.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,387.34 : 243,321.21 = 111,742.53 : x
  2. Step 2: Convert to fraction form
    176,387.34/243,321.21 = 111,742.53/x
  3. Step 3: Cross multiply
    176,387.34x = 243,321.21 × 111,742.53
  4. Step 4: Simplify right side
    176,387.34x = 27,189,327,608.06
  5. Step 5: Solve for x
    x = 27,189,327,608.06/176,387.34
  6. Step 6: Final answer
    x = 154,145.57

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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.