Home / 141,794.88-195,681.05-78,136.77

Finding the Fourth Proportional to 141,794.88, 195,681.05 and 78,136.77

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Solution

The fourth proportional to 141,794.88, 195,681.05 and 78,136.77 is: 107,831.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,794.88 : 195,681.05 = 78,136.77 : x
  2. Step 2: Convert to fraction form
    141,794.88/195,681.05 = 78,136.77/x
  3. Step 3: Cross multiply
    141,794.88x = 195,681.05 × 78,136.77
  4. Step 4: Simplify right side
    141,794.88x = 15,289,885,197.21
  5. Step 5: Solve for x
    x = 15,289,885,197.21/141,794.88
  6. Step 6: Final answer
    x = 107,831.01

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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.