Home / 146,821.10-220,231.65-145,784.30

Finding the Fourth Proportional to 146,821.10, 220,231.65 and 145,784.30

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Solution

The fourth proportional to 146,821.10, 220,231.65 and 145,784.30 is: 218,676.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,821.10 : 220,231.65 = 145,784.30 : x
  2. Step 2: Convert to fraction form
    146,821.10/220,231.65 = 145,784.30/x
  3. Step 3: Cross multiply
    146,821.10x = 220,231.65 × 145,784.30
  4. Step 4: Simplify right side
    146,821.10x = 32,106,316,933.10
  5. Step 5: Solve for x
    x = 32,106,316,933.10/146,821.10
  6. Step 6: Final answer
    x = 218,676.45

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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.