Home / 160,438.56-221,408.88-88,821.60

Finding the Fourth Proportional to 160,438.56, 221,408.88 and 88,821.60

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Solution

The fourth proportional to 160,438.56, 221,408.88 and 88,821.60 is: 122,575.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,438.56 : 221,408.88 = 88,821.60 : x
  2. Step 2: Convert to fraction form
    160,438.56/221,408.88 = 88,821.60/x
  3. Step 3: Cross multiply
    160,438.56x = 221,408.88 × 88,821.60
  4. Step 4: Simplify right side
    160,438.56x = 19,665,890,975.81
  5. Step 5: Solve for x
    x = 19,665,890,975.81/160,438.56
  6. Step 6: Final answer
    x = 122,575.84

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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.