Home / 145,119.36-200,258.93-80,591.93

Finding the Fourth Proportional to 145,119.36, 200,258.93 and 80,591.93

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Solution

The fourth proportional to 145,119.36, 200,258.93 and 80,591.93 is: 111,213.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,119.36 : 200,258.93 = 80,591.93 : x
  2. Step 2: Convert to fraction form
    145,119.36/200,258.93 = 80,591.93/x
  3. Step 3: Cross multiply
    145,119.36x = 200,258.93 × 80,591.93
  4. Step 4: Simplify right side
    145,119.36x = 16,139,253,619.59
  5. Step 5: Solve for x
    x = 16,139,253,619.59/145,119.36
  6. Step 6: Final answer
    x = 111,213.65

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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.