Home / 141,439.52-195,205.20-91,284.32

Finding the Fourth Proportional to 141,439.52, 195,205.20 and 91,284.32

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Solution

The fourth proportional to 141,439.52, 195,205.20 and 91,284.32 is: 125,984.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,439.52 : 195,205.20 = 91,284.32 : x
  2. Step 2: Convert to fraction form
    141,439.52/195,205.20 = 91,284.32/x
  3. Step 3: Cross multiply
    141,439.52x = 195,205.20 × 91,284.32
  4. Step 4: Simplify right side
    141,439.52x = 17,819,173,942.46
  5. Step 5: Solve for x
    x = 17,819,173,942.46/141,439.52
  6. Step 6: Final answer
    x = 125,984.41

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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.