Home / 141,636.06-195,459.48-77,978.16

Finding the Fourth Proportional to 141,636.06, 195,459.48 and 77,978.16

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Solution

The fourth proportional to 141,636.06, 195,459.48 and 77,978.16 is: 107,610.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,636.06 : 195,459.48 = 77,978.16 : x
  2. Step 2: Convert to fraction form
    141,636.06/195,459.48 = 77,978.16/x
  3. Step 3: Cross multiply
    141,636.06x = 195,459.48 × 77,978.16
  4. Step 4: Simplify right side
    141,636.06x = 15,241,570,604.96
  5. Step 5: Solve for x
    x = 15,241,570,604.96/141,636.06
  6. Step 6: Final answer
    x = 107,610.81

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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.