Home / 209,925.14-289,532.83-145,418.72

Finding the Fourth Proportional to 209,925.14, 289,532.83 and 145,418.72

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Solution

The fourth proportional to 209,925.14, 289,532.83 and 145,418.72 is: 200,564.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,925.14 : 289,532.83 = 145,418.72 : x
  2. Step 2: Convert to fraction form
    209,925.14/289,532.83 = 145,418.72/x
  3. Step 3: Cross multiply
    209,925.14x = 289,532.83 × 145,418.72
  4. Step 4: Simplify right side
    209,925.14x = 42,103,493,900.12
  5. Step 5: Solve for x
    x = 42,103,493,900.12/209,925.14
  6. Step 6: Final answer
    x = 200,564.32

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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.