Home / 141,643.08-195,469.16-77,985.16

Finding the Fourth Proportional to 141,643.08, 195,469.16 and 77,985.16

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Solution

The fourth proportional to 141,643.08, 195,469.16 and 77,985.16 is: 107,620.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,643.08 : 195,469.16 = 77,985.16 : x
  2. Step 2: Convert to fraction form
    141,643.08/195,469.16 = 77,985.16/x
  3. Step 3: Cross multiply
    141,643.08x = 195,469.16 × 77,985.16
  4. Step 4: Simplify right side
    141,643.08x = 15,243,693,717.67
  5. Step 5: Solve for x
    x = 15,243,693,717.67/141,643.08
  6. Step 6: Final answer
    x = 107,620.46

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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.