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Finding the Fourth Proportional to 146,769.30, 220,153.95 and 121,859.10

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Solution

The fourth proportional to 146,769.30, 220,153.95 and 121,859.10 is: 182,788.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,769.30 : 220,153.95 = 121,859.10 : x
  2. Step 2: Convert to fraction form
    146,769.30/220,153.95 = 121,859.10/x
  3. Step 3: Cross multiply
    146,769.30x = 220,153.95 × 121,859.10
  4. Step 4: Simplify right side
    146,769.30x = 26,827,762,208.45
  5. Step 5: Solve for x
    x = 26,827,762,208.45/146,769.30
  6. Step 6: Final answer
    x = 182,788.65

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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.