Home / 141,394.21-195,127.74-76,867.79

Finding the Fourth Proportional to 141,394.21, 195,127.74 and 76,867.79

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Solution

The fourth proportional to 141,394.21, 195,127.74 and 76,867.79 is: 106,079.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,394.21 : 195,127.74 = 76,867.79 : x
  2. Step 2: Convert to fraction form
    141,394.21/195,127.74 = 76,867.79/x
  3. Step 3: Cross multiply
    141,394.21x = 195,127.74 × 76,867.79
  4. Step 4: Simplify right side
    141,394.21x = 14,999,037,165.86
  5. Step 5: Solve for x
    x = 14,999,037,165.86/141,394.21
  6. Step 6: Final answer
    x = 106,079.57

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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.