Home / 141,904.64-195,829.72-78,244.72

Finding the Fourth Proportional to 141,904.64, 195,829.72 and 78,244.72

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Solution

The fourth proportional to 141,904.64, 195,829.72 and 78,244.72 is: 107,978.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,904.64 : 195,829.72 = 78,244.72 : x
  2. Step 2: Convert to fraction form
    141,904.64/195,829.72 = 78,244.72/x
  3. Step 3: Cross multiply
    141,904.64x = 195,829.72 × 78,244.72
  4. Step 4: Simplify right side
    141,904.64x = 15,322,641,609.08
  5. Step 5: Solve for x
    x = 15,322,641,609.08/141,904.64
  6. Step 6: Final answer
    x = 107,978.44

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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.