Home / 187,273.76-258,438.88-102,390.82

Finding the Fourth Proportional to 187,273.76, 258,438.88 and 102,390.82

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Solution

The fourth proportional to 187,273.76, 258,438.88 and 102,390.82 is: 141,299.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,273.76 : 258,438.88 = 102,390.82 : x
  2. Step 2: Convert to fraction form
    187,273.76/258,438.88 = 102,390.82/x
  3. Step 3: Cross multiply
    187,273.76x = 258,438.88 × 102,390.82
  4. Step 4: Simplify right side
    187,273.76x = 26,461,768,843.08
  5. Step 5: Solve for x
    x = 26,461,768,843.08/187,273.76
  6. Step 6: Final answer
    x = 141,299.93

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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.