Home / 109,515.80-164,273.70-42,958.10

Finding the Fourth Proportional to 109,515.80, 164,273.70 and 42,958.10

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Solution

The fourth proportional to 109,515.80, 164,273.70 and 42,958.10 is: 64,437.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,515.80 : 164,273.70 = 42,958.10 : x
  2. Step 2: Convert to fraction form
    109,515.80/164,273.70 = 42,958.10/x
  3. Step 3: Cross multiply
    109,515.80x = 164,273.70 × 42,958.10
  4. Step 4: Simplify right side
    109,515.80x = 7,056,886,031.97
  5. Step 5: Solve for x
    x = 7,056,886,031.97/109,515.80
  6. Step 6: Final answer
    x = 64,437.15

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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.