Home / 141,869.99-195,781.94-78,210.06

Finding the Fourth Proportional to 141,869.99, 195,781.94 and 78,210.06

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Solution

The fourth proportional to 141,869.99, 195,781.94 and 78,210.06 is: 107,930.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,869.99 : 195,781.94 = 78,210.06 : x
  2. Step 2: Convert to fraction form
    141,869.99/195,781.94 = 78,210.06/x
  3. Step 3: Cross multiply
    141,869.99x = 195,781.94 × 78,210.06
  4. Step 4: Simplify right side
    141,869.99x = 15,312,116,883.27
  5. Step 5: Solve for x
    x = 15,312,116,883.27/141,869.99
  6. Step 6: Final answer
    x = 107,930.63

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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.