Home / 131,095.13-180,911.48-74,506.50

Finding the Fourth Proportional to 131,095.13, 180,911.48 and 74,506.50

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Solution

The fourth proportional to 131,095.13, 180,911.48 and 74,506.50 is: 102,819.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,095.13 : 180,911.48 = 74,506.50 : x
  2. Step 2: Convert to fraction form
    131,095.13/180,911.48 = 74,506.50/x
  3. Step 3: Cross multiply
    131,095.13x = 180,911.48 × 74,506.50
  4. Step 4: Simplify right side
    131,095.13x = 13,479,080,812.09
  5. Step 5: Solve for x
    x = 13,479,080,812.09/131,095.13
  6. Step 6: Final answer
    x = 102,819.09

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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.