Home / 131,859.41-181,955.18-74,503.72

Finding the Fourth Proportional to 131,859.41, 181,955.18 and 74,503.72

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Solution

The fourth proportional to 131,859.41, 181,955.18 and 74,503.72 is: 102,809.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,859.41 : 181,955.18 = 74,503.72 : x
  2. Step 2: Convert to fraction form
    131,859.41/181,955.18 = 74,503.72/x
  3. Step 3: Cross multiply
    131,859.41x = 181,955.18 × 74,503.72
  4. Step 4: Simplify right side
    131,859.41x = 13,556,336,500.98
  5. Step 5: Solve for x
    x = 13,556,336,500.98/131,859.41
  6. Step 6: Final answer
    x = 102,809.02

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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.