Home / 145,579.28-200,897-81,917.04

Finding the Fourth Proportional to 145,579.28, 200,897 and 81,917.04

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Solution

The fourth proportional to 145,579.28, 200,897 and 81,917.04 is: 113,044.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,579.28 : 200,897 = 81,917.04 : x
  2. Step 2: Convert to fraction form
    145,579.28/200,897 = 81,917.04/x
  3. Step 3: Cross multiply
    145,579.28x = 200,897 × 81,917.04
  4. Step 4: Simplify right side
    145,579.28x = 16,456,887,584.88
  5. Step 5: Solve for x
    x = 16,456,887,584.88/145,579.28
  6. Step 6: Final answer
    x = 113,044.16

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1.5x scale

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.