Home / 131,860.41-181,956.55-74,504.72

Finding the Fourth Proportional to 131,860.41, 181,956.55 and 74,504.72

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Solution

The fourth proportional to 131,860.41, 181,956.55 and 74,504.72 is: 102,810.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,860.41 : 181,956.55 = 74,504.72 : x
  2. Step 2: Convert to fraction form
    131,860.41/181,956.55 = 74,504.72/x
  3. Step 3: Cross multiply
    131,860.41x = 181,956.55 × 74,504.72
  4. Step 4: Simplify right side
    131,860.41x = 13,556,621,809.92
  5. Step 5: Solve for x
    x = 13,556,621,809.92/131,860.41
  6. Step 6: Final answer
    x = 102,810.40

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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.