Home / 231,710.40-347,176.80-113,126.40

Finding the Fourth Proportional to 231,710.40, 347,176.80 and 113,126.40

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Solution

The fourth proportional to 231,710.40, 347,176.80 and 113,126.40 is: 169,499.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,710.40 : 347,176.80 = 113,126.40 : x
  2. Step 2: Convert to fraction form
    231,710.40/347,176.80 = 113,126.40/x
  3. Step 3: Cross multiply
    231,710.40x = 347,176.80 × 113,126.40
  4. Step 4: Simplify right side
    231,710.40x = 39,274,861,547.52
  5. Step 5: Solve for x
    x = 39,274,861,547.52/231,710.40
  6. Step 6: Final answer
    x = 169,499.78

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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.