Home / 257,330.71-386,074.23-124,186.15

Finding the Fourth Proportional to 257,330.71, 386,074.23 and 124,186.15

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Solution

The fourth proportional to 257,330.71, 386,074.23 and 124,186.15 is: 186,316.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,330.71 : 386,074.23 = 124,186.15 : x
  2. Step 2: Convert to fraction form
    257,330.71/386,074.23 = 124,186.15/x
  3. Step 3: Cross multiply
    257,330.71x = 386,074.23 × 124,186.15
  4. Step 4: Simplify right side
    257,330.71x = 47,945,072,237.91
  5. Step 5: Solve for x
    x = 47,945,072,237.91/257,330.71
  6. Step 6: Final answer
    x = 186,316.95

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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.