Home / 160,824.18-221,792.10-100,400.40

Finding the Fourth Proportional to 160,824.18, 221,792.10 and 100,400.40

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Solution

The fourth proportional to 160,824.18, 221,792.10 and 100,400.40 is: 138,461.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,824.18 : 221,792.10 = 100,400.40 : x
  2. Step 2: Convert to fraction form
    160,824.18/221,792.10 = 100,400.40/x
  3. Step 3: Cross multiply
    160,824.18x = 221,792.10 × 100,400.40
  4. Step 4: Simplify right side
    160,824.18x = 22,268,015,556.84
  5. Step 5: Solve for x
    x = 22,268,015,556.84/160,824.18
  6. Step 6: Final answer
    x = 138,461.86

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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.