Home / 160,830.16-221,942.23-89,209.55

Finding the Fourth Proportional to 160,830.16, 221,942.23 and 89,209.55

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Solution

The fourth proportional to 160,830.16, 221,942.23 and 89,209.55 is: 123,107.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,830.16 : 221,942.23 = 89,209.55 : x
  2. Step 2: Convert to fraction form
    160,830.16/221,942.23 = 89,209.55/x
  3. Step 3: Cross multiply
    160,830.16x = 221,942.23 × 89,209.55
  4. Step 4: Simplify right side
    160,830.16x = 19,799,366,796.13
  5. Step 5: Solve for x
    x = 19,799,366,796.13/160,830.16
  6. Step 6: Final answer
    x = 123,107.30

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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.