Home / 141,389.21-195,120.87-76,862.81

Finding the Fourth Proportional to 141,389.21, 195,120.87 and 76,862.81

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Solution

The fourth proportional to 141,389.21, 195,120.87 and 76,862.81 is: 106,072.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,389.21 : 195,120.87 = 76,862.81 : x
  2. Step 2: Convert to fraction form
    141,389.21/195,120.87 = 76,862.81/x
  3. Step 3: Cross multiply
    141,389.21x = 195,120.87 × 76,862.81
  4. Step 4: Simplify right side
    141,389.21x = 14,997,538,357.84
  5. Step 5: Solve for x
    x = 14,997,538,357.84/141,389.21
  6. Step 6: Final answer
    x = 106,072.72

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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.