Home / 209,925.89-289,533.87-145,419.47

Finding the Fourth Proportional to 209,925.89, 289,533.87 and 145,419.47

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Solution

The fourth proportional to 209,925.89, 289,533.87 and 145,419.47 is: 200,565.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,925.89 : 289,533.87 = 145,419.47 : x
  2. Step 2: Convert to fraction form
    209,925.89/289,533.87 = 145,419.47/x
  3. Step 3: Cross multiply
    209,925.89x = 289,533.87 × 145,419.47
  4. Step 4: Simplify right side
    209,925.89x = 42,103,861,195.35
  5. Step 5: Solve for x
    x = 42,103,861,195.35/209,925.89
  6. Step 6: Final answer
    x = 200,565.36

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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.