Home / 119,408.90-164,780.88-64,959.35

Finding the Fourth Proportional to 119,408.90, 164,780.88 and 64,959.35

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Solution

The fourth proportional to 119,408.90, 164,780.88 and 64,959.35 is: 89,642.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,408.90 : 164,780.88 = 64,959.35 : x
  2. Step 2: Convert to fraction form
    119,408.90/164,780.88 = 64,959.35/x
  3. Step 3: Cross multiply
    119,408.90x = 164,780.88 × 64,959.35
  4. Step 4: Simplify right side
    119,408.90x = 10,704,058,857.23
  5. Step 5: Solve for x
    x = 10,704,058,857.23/119,408.90
  6. Step 6: Final answer
    x = 89,642.05

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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.