Home / 109,616.58-164,290.02-87,338.34

Finding the Fourth Proportional to 109,616.58, 164,290.02 and 87,338.34

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Solution

The fourth proportional to 109,616.58, 164,290.02 and 87,338.34 is: 130,900.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,616.58 : 164,290.02 = 87,338.34 : x
  2. Step 2: Convert to fraction form
    109,616.58/164,290.02 = 87,338.34/x
  3. Step 3: Cross multiply
    109,616.58x = 164,290.02 × 87,338.34
  4. Step 4: Simplify right side
    109,616.58x = 14,348,817,625.37
  5. Step 5: Solve for x
    x = 14,348,817,625.37/109,616.58
  6. Step 6: Final answer
    x = 130,900.07

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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.