Home / 165,614.20-248,421.30-76,838.20

Finding the Fourth Proportional to 165,614.20, 248,421.30 and 76,838.20

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Solution

The fourth proportional to 165,614.20, 248,421.30 and 76,838.20 is: 115,257.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,614.20 : 248,421.30 = 76,838.20 : x
  2. Step 2: Convert to fraction form
    165,614.20/248,421.30 = 76,838.20/x
  3. Step 3: Cross multiply
    165,614.20x = 248,421.30 × 76,838.20
  4. Step 4: Simplify right side
    165,614.20x = 19,088,245,533.66
  5. Step 5: Solve for x
    x = 19,088,245,533.66/165,614.20
  6. Step 6: Final answer
    x = 115,257.30

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1.5x scale

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.