Home / 141,801.75-195,680.12-77,271.21

Finding the Fourth Proportional to 141,801.75, 195,680.12 and 77,271.21

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Solution

The fourth proportional to 141,801.75, 195,680.12 and 77,271.21 is: 106,630.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,801.75 : 195,680.12 = 77,271.21 : x
  2. Step 2: Convert to fraction form
    141,801.75/195,680.12 = 77,271.21/x
  3. Step 3: Cross multiply
    141,801.75x = 195,680.12 × 77,271.21
  4. Step 4: Simplify right side
    141,801.75x = 15,120,439,258.99
  5. Step 5: Solve for x
    x = 15,120,439,258.99/141,801.75
  6. Step 6: Final answer
    x = 106,630.84

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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.