Home / 119,859.47-165,410.04-65,414.62

Finding the Fourth Proportional to 119,859.47, 165,410.04 and 65,414.62

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Solution

The fourth proportional to 119,859.47, 165,410.04 and 65,414.62 is: 90,274.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,859.47 : 165,410.04 = 65,414.62 : x
  2. Step 2: Convert to fraction form
    119,859.47/165,410.04 = 65,414.62/x
  3. Step 3: Cross multiply
    119,859.47x = 165,410.04 × 65,414.62
  4. Step 4: Simplify right side
    119,859.47x = 10,820,235,074.32
  5. Step 5: Solve for x
    x = 10,820,235,074.32/119,859.47
  6. Step 6: Final answer
    x = 90,274.34

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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.