Home / 109,944.83-151,645.64-100,899.40

Finding the Fourth Proportional to 109,944.83, 151,645.64 and 100,899.40

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Solution

The fourth proportional to 109,944.83, 151,645.64 and 100,899.40 is: 139,169.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,944.83 : 151,645.64 = 100,899.40 : x
  2. Step 2: Convert to fraction form
    109,944.83/151,645.64 = 100,899.40/x
  3. Step 3: Cross multiply
    109,944.83x = 151,645.64 × 100,899.40
  4. Step 4: Simplify right side
    109,944.83x = 15,300,953,330.39
  5. Step 5: Solve for x
    x = 15,300,953,330.39/109,944.83
  6. Step 6: Final answer
    x = 139,169.38

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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.