Home / 160,798.30-221,915.27-89,201.38

Finding the Fourth Proportional to 160,798.30, 221,915.27 and 89,201.38

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Solution

The fourth proportional to 160,798.30, 221,915.27 and 89,201.38 is: 123,105.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,798.30 : 221,915.27 = 89,201.38 : x
  2. Step 2: Convert to fraction form
    160,798.30/221,915.27 = 89,201.38/x
  3. Step 3: Cross multiply
    160,798.30x = 221,915.27 × 89,201.38
  4. Step 4: Simplify right side
    160,798.30x = 19,795,146,771.49
  5. Step 5: Solve for x
    x = 19,795,146,771.49/160,798.30
  6. Step 6: Final answer
    x = 123,105.45

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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.