Home / 146,000.30-219,000.45-127,921.10

Finding the Fourth Proportional to 146,000.30, 219,000.45 and 127,921.10

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Solution

The fourth proportional to 146,000.30, 219,000.45 and 127,921.10 is: 191,881.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,000.30 : 219,000.45 = 127,921.10 : x
  2. Step 2: Convert to fraction form
    146,000.30/219,000.45 = 127,921.10/x
  3. Step 3: Cross multiply
    146,000.30x = 219,000.45 × 127,921.10
  4. Step 4: Simplify right side
    146,000.30x = 28,014,778,464.50
  5. Step 5: Solve for x
    x = 28,014,778,464.50/146,000.30
  6. Step 6: Final answer
    x = 191,881.65

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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.