Home / 141,319.16-195,018.24-77,655.60

Finding the Fourth Proportional to 141,319.16, 195,018.24 and 77,655.60

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Solution

The fourth proportional to 141,319.16, 195,018.24 and 77,655.60 is: 107,163.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,319.16 : 195,018.24 = 77,655.60 : x
  2. Step 2: Convert to fraction form
    141,319.16/195,018.24 = 77,655.60/x
  3. Step 3: Cross multiply
    141,319.16x = 195,018.24 × 77,655.60
  4. Step 4: Simplify right side
    141,319.16x = 15,144,258,438.14
  5. Step 5: Solve for x
    x = 15,144,258,438.14/141,319.16
  6. Step 6: Final answer
    x = 107,163.52

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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.