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Finding the Fourth Proportional to 160,880.88, 221,870.16 and 100,457.04

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Solution

The fourth proportional to 160,880.88, 221,870.16 and 100,457.04 is: 138,539.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,880.88 : 221,870.16 = 100,457.04 : x
  2. Step 2: Convert to fraction form
    160,880.88/221,870.16 = 100,457.04/x
  3. Step 3: Cross multiply
    160,880.88x = 221,870.16 × 100,457.04
  4. Step 4: Simplify right side
    160,880.88x = 22,288,419,537.93
  5. Step 5: Solve for x
    x = 22,288,419,537.93/160,880.88
  6. Step 6: Final answer
    x = 138,539.89

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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.