Home / 152,145.11-209,889.55-98,447.44

Finding the Fourth Proportional to 152,145.11, 209,889.55 and 98,447.44

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Solution

The fourth proportional to 152,145.11, 209,889.55 and 98,447.44 is: 135,811.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,145.11 : 209,889.55 = 98,447.44 : x
  2. Step 2: Convert to fraction form
    152,145.11/209,889.55 = 98,447.44/x
  3. Step 3: Cross multiply
    152,145.11x = 209,889.55 × 98,447.44
  4. Step 4: Simplify right side
    152,145.11x = 20,663,088,880.25
  5. Step 5: Solve for x
    x = 20,663,088,880.25/152,145.11
  6. Step 6: Final answer
    x = 135,811.72

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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.