Home / 160,820.96-221,860.13-100,406.52

Finding the Fourth Proportional to 160,820.96, 221,860.13 and 100,406.52

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Solution

The fourth proportional to 160,820.96, 221,860.13 and 100,406.52 is: 138,515.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,820.96 : 221,860.13 = 100,406.52 : x
  2. Step 2: Convert to fraction form
    160,820.96/221,860.13 = 100,406.52/x
  3. Step 3: Cross multiply
    160,820.96x = 221,860.13 × 100,406.52
  4. Step 4: Simplify right side
    160,820.96x = 22,276,203,078.02
  5. Step 5: Solve for x
    x = 22,276,203,078.02/160,820.96
  6. Step 6: Final answer
    x = 138,515.55

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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.