Home / 109,967.27-151,676.55-100,921.85

Finding the Fourth Proportional to 109,967.27, 151,676.55 and 100,921.85

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Solution

The fourth proportional to 109,967.27, 151,676.55 and 100,921.85 is: 139,200.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,967.27 : 151,676.55 = 100,921.85 : x
  2. Step 2: Convert to fraction form
    109,967.27/151,676.55 = 100,921.85/x
  3. Step 3: Cross multiply
    109,967.27x = 151,676.55 × 100,921.85
  4. Step 4: Simplify right side
    109,967.27x = 15,307,477,838.02
  5. Step 5: Solve for x
    x = 15,307,477,838.02/109,967.27
  6. Step 6: Final answer
    x = 139,200.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.