Home / 160,245.63-221,130-87,634.08

Finding the Fourth Proportional to 160,245.63, 221,130 and 87,634.08

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Solution

The fourth proportional to 160,245.63, 221,130 and 87,634.08 is: 120,930.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,245.63 : 221,130 = 87,634.08 : x
  2. Step 2: Convert to fraction form
    160,245.63/221,130 = 87,634.08/x
  3. Step 3: Cross multiply
    160,245.63x = 221,130 × 87,634.08
  4. Step 4: Simplify right side
    160,245.63x = 19,378,524,110.40
  5. Step 5: Solve for x
    x = 19,378,524,110.40/160,245.63
  6. Step 6: Final answer
    x = 120,930.13

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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.