Home / 141,804.93-195,700.29-78,142.74

Finding the Fourth Proportional to 141,804.93, 195,700.29 and 78,142.74

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Solution

The fourth proportional to 141,804.93, 195,700.29 and 78,142.74 is: 107,842.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,804.93 : 195,700.29 = 78,142.74 : x
  2. Step 2: Convert to fraction form
    141,804.93/195,700.29 = 78,142.74/x
  3. Step 3: Cross multiply
    141,804.93x = 195,700.29 × 78,142.74
  4. Step 4: Simplify right side
    141,804.93x = 15,292,556,879.39
  5. Step 5: Solve for x
    x = 15,292,556,879.39/141,804.93
  6. Step 6: Final answer
    x = 107,842.21

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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.