Home / 141,368.97-195,089.32-77,705.40

Finding the Fourth Proportional to 141,368.97, 195,089.32 and 77,705.40

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Solution

The fourth proportional to 141,368.97, 195,089.32 and 77,705.40 is: 107,233.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,368.97 : 195,089.32 = 77,705.40 : x
  2. Step 2: Convert to fraction form
    141,368.97/195,089.32 = 77,705.40/x
  3. Step 3: Cross multiply
    141,368.97x = 195,089.32 × 77,705.40
  4. Step 4: Simplify right side
    141,368.97x = 15,159,493,646.33
  5. Step 5: Solve for x
    x = 15,159,493,646.33/141,368.97
  6. Step 6: Final answer
    x = 107,233.53

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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.