Home / 257,126.85-385,939.02-124,100.73

Finding the Fourth Proportional to 257,126.85, 385,939.02 and 124,100.73

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Solution

The fourth proportional to 257,126.85, 385,939.02 and 124,100.73 is: 186,271.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,126.85 : 385,939.02 = 124,100.73 : x
  2. Step 2: Convert to fraction form
    257,126.85/385,939.02 = 124,100.73/x
  3. Step 3: Cross multiply
    257,126.85x = 385,939.02 × 124,100.73
  4. Step 4: Simplify right side
    257,126.85x = 47,895,314,117.48
  5. Step 5: Solve for x
    x = 47,895,314,117.48/257,126.85
  6. Step 6: Final answer
    x = 186,271.15

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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.