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Finding the Fourth Proportional to 160,385, 221,331.30 and 93,361.64

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Solution

The fourth proportional to 160,385, 221,331.30 and 93,361.64 is: 128,839.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,385 : 221,331.30 = 93,361.64 : x
  2. Step 2: Convert to fraction form
    160,385/221,331.30 = 93,361.64/x
  3. Step 3: Cross multiply
    160,385x = 221,331.30 × 93,361.64
  4. Step 4: Simplify right side
    160,385x = 20,663,853,151.33
  5. Step 5: Solve for x
    x = 20,663,853,151.33/160,385
  6. Step 6: Final answer
    x = 128,839.06

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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.