Home / 231,570.21-347,119.56-105,300.12

Finding the Fourth Proportional to 231,570.21, 347,119.56 and 105,300.12

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Solution

The fourth proportional to 231,570.21, 347,119.56 and 105,300.12 is: 157,842.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,570.21 : 347,119.56 = 105,300.12 : x
  2. Step 2: Convert to fraction form
    231,570.21/347,119.56 = 105,300.12/x
  3. Step 3: Cross multiply
    231,570.21x = 347,119.56 × 105,300.12
  4. Step 4: Simplify right side
    231,570.21x = 36,551,731,322.35
  5. Step 5: Solve for x
    x = 36,551,731,322.35/231,570.21
  6. Step 6: Final answer
    x = 157,842.98

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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.