Home / 194,715.90-292,073.85-128,231.10

Finding the Fourth Proportional to 194,715.90, 292,073.85 and 128,231.10

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Solution

The fourth proportional to 194,715.90, 292,073.85 and 128,231.10 is: 192,346.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,715.90 : 292,073.85 = 128,231.10 : x
  2. Step 2: Convert to fraction form
    194,715.90/292,073.85 = 128,231.10/x
  3. Step 3: Cross multiply
    194,715.90x = 292,073.85 × 128,231.10
  4. Step 4: Simplify right side
    194,715.90x = 37,452,951,066.74
  5. Step 5: Solve for x
    x = 37,452,951,066.74/194,715.90
  6. Step 6: Final answer
    x = 192,346.65

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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.