Home / 109,475.10-164,212.65-70,109.10

Finding the Fourth Proportional to 109,475.10, 164,212.65 and 70,109.10

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Solution

The fourth proportional to 109,475.10, 164,212.65 and 70,109.10 is: 105,163.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,475.10 : 164,212.65 = 70,109.10 : x
  2. Step 2: Convert to fraction form
    109,475.10/164,212.65 = 70,109.10/x
  3. Step 3: Cross multiply
    109,475.10x = 164,212.65 × 70,109.10
  4. Step 4: Simplify right side
    109,475.10x = 11,512,801,100.12
  5. Step 5: Solve for x
    x = 11,512,801,100.12/109,475.10
  6. Step 6: Final answer
    x = 105,163.65

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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.