Home / 160,344.21-221,265.79-88,720.64

Finding the Fourth Proportional to 160,344.21, 221,265.79 and 88,720.64

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Solution

The fourth proportional to 160,344.21, 221,265.79 and 88,720.64 is: 122,429.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,344.21 : 221,265.79 = 88,720.64 : x
  2. Step 2: Convert to fraction form
    160,344.21/221,265.79 = 88,720.64/x
  3. Step 3: Cross multiply
    160,344.21x = 221,265.79 × 88,720.64
  4. Step 4: Simplify right side
    160,344.21x = 19,630,841,392.58
  5. Step 5: Solve for x
    x = 19,630,841,392.58/160,344.21
  6. Step 6: Final answer
    x = 122,429.37

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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.