Home / 109,675.35-164,340.63-84,776.36

Finding the Fourth Proportional to 109,675.35, 164,340.63 and 84,776.36

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Solution

The fourth proportional to 109,675.35, 164,340.63 and 84,776.36 is: 127,031.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,675.35 : 164,340.63 = 84,776.36 : x
  2. Step 2: Convert to fraction form
    109,675.35/164,340.63 = 84,776.36/x
  3. Step 3: Cross multiply
    109,675.35x = 164,340.63 × 84,776.36
  4. Step 4: Simplify right side
    109,675.35x = 13,932,199,589.80
  5. Step 5: Solve for x
    x = 13,932,199,589.80/109,675.35
  6. Step 6: Final answer
    x = 127,031.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.