Home / 141,578.64-195,382.40-77,920.34

Finding the Fourth Proportional to 141,578.64, 195,382.40 and 77,920.34

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Solution

The fourth proportional to 141,578.64, 195,382.40 and 77,920.34 is: 107,532.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,578.64 : 195,382.40 = 77,920.34 : x
  2. Step 2: Convert to fraction form
    141,578.64/195,382.40 = 77,920.34/x
  3. Step 3: Cross multiply
    141,578.64x = 195,382.40 × 77,920.34
  4. Step 4: Simplify right side
    141,578.64x = 15,224,261,671.50
  5. Step 5: Solve for x
    x = 15,224,261,671.50/141,578.64
  6. Step 6: Final answer
    x = 107,532.19

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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.