Home / 231,134.70-347,030.10-142,561.20

Finding the Fourth Proportional to 231,134.70, 347,030.10 and 142,561.20

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Solution

The fourth proportional to 231,134.70, 347,030.10 and 142,561.20 is: 214,044.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,134.70 : 347,030.10 = 142,561.20 : x
  2. Step 2: Convert to fraction form
    231,134.70/347,030.10 = 142,561.20/x
  3. Step 3: Cross multiply
    231,134.70x = 347,030.10 × 142,561.20
  4. Step 4: Simplify right side
    231,134.70x = 49,473,027,492.12
  5. Step 5: Solve for x
    x = 49,473,027,492.12/231,134.70
  6. Step 6: Final answer
    x = 214,044.14

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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.