Home / 209,727.04-289,486.56-142,697.92

Finding the Fourth Proportional to 209,727.04, 289,486.56 and 142,697.92

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Solution

The fourth proportional to 209,727.04, 289,486.56 and 142,697.92 is: 196,966.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,727.04 : 289,486.56 = 142,697.92 : x
  2. Step 2: Convert to fraction form
    209,727.04/289,486.56 = 142,697.92/x
  3. Step 3: Cross multiply
    209,727.04x = 289,486.56 × 142,697.92
  4. Step 4: Simplify right side
    209,727.04x = 41,309,129,979.96
  5. Step 5: Solve for x
    x = 41,309,129,979.96/209,727.04
  6. Step 6: Final answer
    x = 196,966.16

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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.