Home / 141,434.76-195,185.28-77,771.16

Finding the Fourth Proportional to 141,434.76, 195,185.28 and 77,771.16

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Solution

The fourth proportional to 141,434.76, 195,185.28 and 77,771.16 is: 107,327.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,434.76 : 195,185.28 = 77,771.16 : x
  2. Step 2: Convert to fraction form
    141,434.76/195,185.28 = 77,771.16/x
  3. Step 3: Cross multiply
    141,434.76x = 195,185.28 × 77,771.16
  4. Step 4: Simplify right side
    141,434.76x = 15,179,785,640.52
  5. Step 5: Solve for x
    x = 15,179,785,640.52/141,434.76
  6. Step 6: Final answer
    x = 107,327.12

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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.