Home / 252,128.17-347,928.06-137,404.50

Finding the Fourth Proportional to 252,128.17, 347,928.06 and 137,404.50

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Solution

The fourth proportional to 252,128.17, 347,928.06 and 137,404.50 is: 189,613.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,128.17 : 347,928.06 = 137,404.50 : x
  2. Step 2: Convert to fraction form
    252,128.17/347,928.06 = 137,404.50/x
  3. Step 3: Cross multiply
    252,128.17x = 347,928.06 × 137,404.50
  4. Step 4: Simplify right side
    252,128.17x = 47,806,881,120.27
  5. Step 5: Solve for x
    x = 47,806,881,120.27/252,128.17
  6. Step 6: Final answer
    x = 189,613.41

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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.