Home / 165,977.28-248,838.30-85,929.43

Finding the Fourth Proportional to 165,977.28, 248,838.30 and 85,929.43

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Solution

The fourth proportional to 165,977.28, 248,838.30 and 85,929.43 is: 128,828.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,977.28 : 248,838.30 = 85,929.43 : x
  2. Step 2: Convert to fraction form
    165,977.28/248,838.30 = 85,929.43/x
  3. Step 3: Cross multiply
    165,977.28x = 248,838.30 × 85,929.43
  4. Step 4: Simplify right side
    165,977.28x = 21,382,533,495.99
  5. Step 5: Solve for x
    x = 21,382,533,495.99/165,977.28
  6. Step 6: Final answer
    x = 128,828.08

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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.