Home / 138,601.35-191,269.93-74,939.15

Finding the Fourth Proportional to 138,601.35, 191,269.93 and 74,939.15

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Solution

The fourth proportional to 138,601.35, 191,269.93 and 74,939.15 is: 103,416.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,601.35 : 191,269.93 = 74,939.15 : x
  2. Step 2: Convert to fraction form
    138,601.35/191,269.93 = 74,939.15/x
  3. Step 3: Cross multiply
    138,601.35x = 191,269.93 × 74,939.15
  4. Step 4: Simplify right side
    138,601.35x = 14,333,606,078.92
  5. Step 5: Solve for x
    x = 14,333,606,078.92/138,601.35
  6. Step 6: Final answer
    x = 103,416.06

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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.