Home / 109,913.45-164,820.90-43,319.30

Finding the Fourth Proportional to 109,913.45, 164,820.90 and 43,319.30

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Solution

The fourth proportional to 109,913.45, 164,820.90 and 43,319.30 is: 64,959.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,913.45 : 164,820.90 = 43,319.30 : x
  2. Step 2: Convert to fraction form
    109,913.45/164,820.90 = 43,319.30/x
  3. Step 3: Cross multiply
    109,913.45x = 164,820.90 × 43,319.30
  4. Step 4: Simplify right side
    109,913.45x = 7,139,926,013.37
  5. Step 5: Solve for x
    x = 7,139,926,013.37/109,913.45
  6. Step 6: Final answer
    x = 64,959.53

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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.