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Finding the Fourth Proportional to 159,880.81, 220,636.23 and 88,261.42

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Solution

The fourth proportional to 159,880.81, 220,636.23 and 88,261.42 is: 121,801.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,880.81 : 220,636.23 = 88,261.42 : x
  2. Step 2: Convert to fraction form
    159,880.81/220,636.23 = 88,261.42/x
  3. Step 3: Cross multiply
    159,880.81x = 220,636.23 × 88,261.42
  4. Step 4: Simplify right side
    159,880.81x = 19,473,666,963.25
  5. Step 5: Solve for x
    x = 19,473,666,963.25/159,880.81
  6. Step 6: Final answer
    x = 121,801.15

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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.