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Finding the Fourth Proportional to 160,806.79, 221,927.00 and 89,209.88

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Solution

The fourth proportional to 160,806.79, 221,927.00 and 89,209.88 is: 123,117.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,806.79 : 221,927.00 = 89,209.88 : x
  2. Step 2: Convert to fraction form
    160,806.79/221,927.00 = 89,209.88/x
  3. Step 3: Cross multiply
    160,806.79x = 221,927.00 × 89,209.88
  4. Step 4: Simplify right side
    160,806.79x = 19,798,079,483.08
  5. Step 5: Solve for x
    x = 19,798,079,483.08/160,806.79
  6. Step 6: Final answer
    x = 123,117.19

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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.