Home / 109,739.90-164,511.30-43,225.40

Finding the Fourth Proportional to 109,739.90, 164,511.30 and 43,225.40

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Solution

The fourth proportional to 109,739.90, 164,511.30 and 43,225.40 is: 64,799.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,739.90 : 164,511.30 = 43,225.40 : x
  2. Step 2: Convert to fraction form
    109,739.90/164,511.30 = 43,225.40/x
  3. Step 3: Cross multiply
    109,739.90x = 164,511.30 × 43,225.40
  4. Step 4: Simplify right side
    109,739.90x = 7,111,066,747.02
  5. Step 5: Solve for x
    x = 7,111,066,747.02/109,739.90
  6. Step 6: Final answer
    x = 64,799.28

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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.