Home / 251,705.43-347,346.90-136,986.35

Finding the Fourth Proportional to 251,705.43, 347,346.90 and 136,986.35

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Solution

The fourth proportional to 251,705.43, 347,346.90 and 136,986.35 is: 189,037.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,705.43 : 347,346.90 = 136,986.35 : x
  2. Step 2: Convert to fraction form
    251,705.43/347,346.90 = 136,986.35/x
  3. Step 3: Cross multiply
    251,705.43x = 347,346.90 × 136,986.35
  4. Step 4: Simplify right side
    251,705.43x = 47,581,782,278.08
  5. Step 5: Solve for x
    x = 47,581,782,278.08/251,705.43
  6. Step 6: Final answer
    x = 189,037.57

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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.