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Finding the Fourth Proportional to 160,599.45, 221,735.50 and 143,549.06

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Solution

The fourth proportional to 160,599.45, 221,735.50 and 143,549.06 is: 198,194.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,599.45 : 221,735.50 = 143,549.06 : x
  2. Step 2: Convert to fraction form
    160,599.45/221,735.50 = 143,549.06/x
  3. Step 3: Cross multiply
    160,599.45x = 221,735.50 × 143,549.06
  4. Step 4: Simplify right side
    160,599.45x = 31,829,921,126.08
  5. Step 5: Solve for x
    x = 31,829,921,126.08/160,599.45
  6. Step 6: Final answer
    x = 198,194.46

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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.