Home / 147,633.20-221,449.80-97,769.60

Finding the Fourth Proportional to 147,633.20, 221,449.80 and 97,769.60

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Solution

The fourth proportional to 147,633.20, 221,449.80 and 97,769.60 is: 146,654.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,633.20 : 221,449.80 = 97,769.60 : x
  2. Step 2: Convert to fraction form
    147,633.20/221,449.80 = 97,769.60/x
  3. Step 3: Cross multiply
    147,633.20x = 221,449.80 × 97,769.60
  4. Step 4: Simplify right side
    147,633.20x = 21,651,058,366.08
  5. Step 5: Solve for x
    x = 21,651,058,366.08/147,633.20
  6. Step 6: Final answer
    x = 146,654.40

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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.