Home / 160,941.44-221,998.14-103,655

Finding the Fourth Proportional to 160,941.44, 221,998.14 and 103,655

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Solution

The fourth proportional to 160,941.44, 221,998.14 and 103,655 is: 142,978.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,941.44 : 221,998.14 = 103,655 : x
  2. Step 2: Convert to fraction form
    160,941.44/221,998.14 = 103,655/x
  3. Step 3: Cross multiply
    160,941.44x = 221,998.14 × 103,655
  4. Step 4: Simplify right side
    160,941.44x = 23,011,217,201.70
  5. Step 5: Solve for x
    x = 23,011,217,201.70/160,941.44
  6. Step 6: Final answer
    x = 142,978.82

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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.