Home / 104,819.40-144,628.38-66,591

Finding the Fourth Proportional to 104,819.40, 144,628.38 and 66,591

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Solution

The fourth proportional to 104,819.40, 144,628.38 and 66,591 is: 91,881.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,819.40 : 144,628.38 = 66,591 : x
  2. Step 2: Convert to fraction form
    104,819.40/144,628.38 = 66,591/x
  3. Step 3: Cross multiply
    104,819.40x = 144,628.38 × 66,591
  4. Step 4: Simplify right side
    104,819.40x = 9,630,948,452.58
  5. Step 5: Solve for x
    x = 9,630,948,452.58/104,819.40
  6. Step 6: Final answer
    x = 91,881.35

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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.