Home / 160,766.40-221,858.88-89,142.24

Finding the Fourth Proportional to 160,766.40, 221,858.88 and 89,142.24

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Solution

The fourth proportional to 160,766.40, 221,858.88 and 89,142.24 is: 123,016.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,766.40 : 221,858.88 = 89,142.24 : x
  2. Step 2: Convert to fraction form
    160,766.40/221,858.88 = 89,142.24/x
  3. Step 3: Cross multiply
    160,766.40x = 221,858.88 × 89,142.24
  4. Step 4: Simplify right side
    160,766.40x = 19,776,997,527.09
  5. Step 5: Solve for x
    x = 19,776,997,527.09/160,766.40
  6. Step 6: Final answer
    x = 123,016.98

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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.