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Finding the Fourth Proportional to 159,566.40, 220,202.40 and 87,943.20

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Solution

The fourth proportional to 159,566.40, 220,202.40 and 87,943.20 is: 121,362.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,566.40 : 220,202.40 = 87,943.20 : x
  2. Step 2: Convert to fraction form
    159,566.40/220,202.40 = 87,943.20/x
  3. Step 3: Cross multiply
    159,566.40x = 220,202.40 × 87,943.20
  4. Step 4: Simplify right side
    159,566.40x = 19,365,303,703.68
  5. Step 5: Solve for x
    x = 19,365,303,703.68/159,566.40
  6. Step 6: Final answer
    x = 121,362.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.