Home / 160,759.15-221,857.60-89,139.17

Finding the Fourth Proportional to 160,759.15, 221,857.60 and 89,139.17

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Solution

The fourth proportional to 160,759.15, 221,857.60 and 89,139.17 is: 123,017.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,759.15 : 221,857.60 = 89,139.17 : x
  2. Step 2: Convert to fraction form
    160,759.15/221,857.60 = 89,139.17/x
  3. Step 3: Cross multiply
    160,759.15x = 221,857.60 × 89,139.17
  4. Step 4: Simplify right side
    160,759.15x = 19,776,201,321.85
  5. Step 5: Solve for x
    x = 19,776,201,321.85/160,759.15
  6. Step 6: Final answer
    x = 123,017.58

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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.