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Finding the Fourth Proportional to 159,807.44, 220,526.78 and 91,776.45

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Solution

The fourth proportional to 159,807.44, 220,526.78 and 91,776.45 is: 126,647.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,807.44 : 220,526.78 = 91,776.45 : x
  2. Step 2: Convert to fraction form
    159,807.44/220,526.78 = 91,776.45/x
  3. Step 3: Cross multiply
    159,807.44x = 220,526.78 × 91,776.45
  4. Step 4: Simplify right side
    159,807.44x = 20,239,164,539.45
  5. Step 5: Solve for x
    x = 20,239,164,539.45/159,807.44
  6. Step 6: Final answer
    x = 126,647.20

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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.