Home / 257,128.43-385,941.42-124,102.34

Finding the Fourth Proportional to 257,128.43, 385,941.42 and 124,102.34

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Solution

The fourth proportional to 257,128.43, 385,941.42 and 124,102.34 is: 186,273.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,128.43 : 385,941.42 = 124,102.34 : x
  2. Step 2: Convert to fraction form
    257,128.43/385,941.42 = 124,102.34/x
  3. Step 3: Cross multiply
    257,128.43x = 385,941.42 × 124,102.34
  4. Step 4: Simplify right side
    257,128.43x = 47,896,231,395.22
  5. Step 5: Solve for x
    x = 47,896,231,395.22/257,128.43
  6. Step 6: Final answer
    x = 186,273.58

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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.