Home / 119,398.08-164,880-77,029.44

Finding the Fourth Proportional to 119,398.08, 164,880 and 77,029.44

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Solution

The fourth proportional to 119,398.08, 164,880 and 77,029.44 is: 106,372.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,398.08 : 164,880 = 77,029.44 : x
  2. Step 2: Convert to fraction form
    119,398.08/164,880 = 77,029.44/x
  3. Step 3: Cross multiply
    119,398.08x = 164,880 × 77,029.44
  4. Step 4: Simplify right side
    119,398.08x = 12,700,614,067.20
  5. Step 5: Solve for x
    x = 12,700,614,067.20/119,398.08
  6. Step 6: Final answer
    x = 106,372.01

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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.