Home / 160,935.96-221,946.30-100,512.12

Finding the Fourth Proportional to 160,935.96, 221,946.30 and 100,512.12

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Solution

The fourth proportional to 160,935.96, 221,946.30 and 100,512.12 is: 138,615.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,935.96 : 221,946.30 = 100,512.12 : x
  2. Step 2: Convert to fraction form
    160,935.96/221,946.30 = 100,512.12/x
  3. Step 3: Cross multiply
    160,935.96x = 221,946.30 × 100,512.12
  4. Step 4: Simplify right side
    160,935.96x = 22,308,293,139.16
  5. Step 5: Solve for x
    x = 22,308,293,139.16/160,935.96
  6. Step 6: Final answer
    x = 138,615.96

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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.