Home / 138,586.93-191,249.98-74,924.71

Finding the Fourth Proportional to 138,586.93, 191,249.98 and 74,924.71

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Solution

The fourth proportional to 138,586.93, 191,249.98 and 74,924.71 is: 103,396.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,586.93 : 191,249.98 = 74,924.71 : x
  2. Step 2: Convert to fraction form
    138,586.93/191,249.98 = 74,924.71/x
  3. Step 3: Cross multiply
    138,586.93x = 191,249.98 × 74,924.71
  4. Step 4: Simplify right side
    138,586.93x = 14,329,349,289.01
  5. Step 5: Solve for x
    x = 14,329,349,289.01/138,586.93
  6. Step 6: Final answer
    x = 103,396.11

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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.