Home / 141,570.36-195,362.20-77,902.20

Finding the Fourth Proportional to 141,570.36, 195,362.20 and 77,902.20

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Solution

The fourth proportional to 141,570.36, 195,362.20 and 77,902.20 is: 107,502.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,570.36 : 195,362.20 = 77,902.20 : x
  2. Step 2: Convert to fraction form
    141,570.36/195,362.20 = 77,902.20/x
  3. Step 3: Cross multiply
    141,570.36x = 195,362.20 × 77,902.20
  4. Step 4: Simplify right side
    141,570.36x = 15,219,145,176.84
  5. Step 5: Solve for x
    x = 15,219,145,176.84/141,570.36
  6. Step 6: Final answer
    x = 107,502.34

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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.