Home / 194,478.10-291,256.35-131,809.30

Finding the Fourth Proportional to 194,478.10, 291,256.35 and 131,809.30

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Solution

The fourth proportional to 194,478.10, 291,256.35 and 131,809.30 is: 197,401.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,478.10 : 291,256.35 = 131,809.30 : x
  2. Step 2: Convert to fraction form
    194,478.10/291,256.35 = 131,809.30/x
  3. Step 3: Cross multiply
    194,478.10x = 291,256.35 × 131,809.30
  4. Step 4: Simplify right side
    194,478.10x = 38,390,295,614.06
  5. Step 5: Solve for x
    x = 38,390,295,614.06/194,478.10
  6. Step 6: Final answer
    x = 197,401.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.