Home / 110,788.09-166,141.13-87,141.66

Finding the Fourth Proportional to 110,788.09, 166,141.13 and 87,141.66

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Solution

The fourth proportional to 110,788.09, 166,141.13 and 87,141.66 is: 130,680.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,788.09 : 166,141.13 = 87,141.66 : x
  2. Step 2: Convert to fraction form
    110,788.09/166,141.13 = 87,141.66/x
  3. Step 3: Cross multiply
    110,788.09x = 166,141.13 × 87,141.66
  4. Step 4: Simplify right side
    110,788.09x = 14,477,812,803.74
  5. Step 5: Solve for x
    x = 14,477,812,803.74/110,788.09
  6. Step 6: Final answer
    x = 130,680.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.