Home / 252,123.64-347,930.67-137,402.31

Finding the Fourth Proportional to 252,123.64, 347,930.67 and 137,402.31

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Solution

The fourth proportional to 252,123.64, 347,930.67 and 137,402.31 is: 189,615.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,123.64 : 347,930.67 = 137,402.31 : x
  2. Step 2: Convert to fraction form
    252,123.64/347,930.67 = 137,402.31/x
  3. Step 3: Cross multiply
    252,123.64x = 347,930.67 × 137,402.31
  4. Step 4: Simplify right side
    252,123.64x = 47,806,477,777.85
  5. Step 5: Solve for x
    x = 47,806,477,777.85/252,123.64
  6. Step 6: Final answer
    x = 189,615.21

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1.5x scale

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.