Home / 187,178.86-258,324.64-102,308.68

Finding the Fourth Proportional to 187,178.86, 258,324.64 and 102,308.68

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Solution

The fourth proportional to 187,178.86, 258,324.64 and 102,308.68 is: 141,195.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,178.86 : 258,324.64 = 102,308.68 : x
  2. Step 2: Convert to fraction form
    187,178.86/258,324.64 = 102,308.68/x
  3. Step 3: Cross multiply
    187,178.86x = 258,324.64 × 102,308.68
  4. Step 4: Simplify right side
    187,178.86x = 26,428,852,929.88
  5. Step 5: Solve for x
    x = 26,428,852,929.88/187,178.86
  6. Step 6: Final answer
    x = 141,195.71

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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.