Home / 141,633.64-195,460.08-77,977.36

Finding the Fourth Proportional to 141,633.64, 195,460.08 and 77,977.36

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Solution

The fourth proportional to 141,633.64, 195,460.08 and 77,977.36 is: 107,611.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,633.64 : 195,460.08 = 77,977.36 : x
  2. Step 2: Convert to fraction form
    141,633.64/195,460.08 = 77,977.36/x
  3. Step 3: Cross multiply
    141,633.64x = 195,460.08 × 77,977.36
  4. Step 4: Simplify right side
    141,633.64x = 15,241,461,023.79
  5. Step 5: Solve for x
    x = 15,241,461,023.79/141,633.64
  6. Step 6: Final answer
    x = 107,611.87

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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.