Home / 109,487.90-164,219.70-30,610.10

Finding the Fourth Proportional to 109,487.90, 164,219.70 and 30,610.10

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Solution

The fourth proportional to 109,487.90, 164,219.70 and 30,610.10 is: 45,911.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,487.90 : 164,219.70 = 30,610.10 : x
  2. Step 2: Convert to fraction form
    109,487.90/164,219.70 = 30,610.10/x
  3. Step 3: Cross multiply
    109,487.90x = 164,219.70 × 30,610.10
  4. Step 4: Simplify right side
    109,487.90x = 5,026,781,438.97
  5. Step 5: Solve for x
    x = 5,026,781,438.97/109,487.90
  6. Step 6: Final answer
    x = 45,911.75

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1.5x scale

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.