Home / 160,261.20-221,162.40-88,639.38

Finding the Fourth Proportional to 160,261.20, 221,162.40 and 88,639.38

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Solution

The fourth proportional to 160,261.20, 221,162.40 and 88,639.38 is: 122,323.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,261.20 : 221,162.40 = 88,639.38 : x
  2. Step 2: Convert to fraction form
    160,261.20/221,162.40 = 88,639.38/x
  3. Step 3: Cross multiply
    160,261.20x = 221,162.40 × 88,639.38
  4. Step 4: Simplify right side
    160,261.20x = 19,603,698,015.31
  5. Step 5: Solve for x
    x = 19,603,698,015.31/160,261.20
  6. Step 6: Final answer
    x = 122,323.42

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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.