Home / 192,670.16-288,631.32-141,977.20

Finding the Fourth Proportional to 192,670.16, 288,631.32 and 141,977.20

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Solution

The fourth proportional to 192,670.16, 288,631.32 and 141,977.20 is: 212,690.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,670.16 : 288,631.32 = 141,977.20 : x
  2. Step 2: Convert to fraction form
    192,670.16/288,631.32 = 141,977.20/x
  3. Step 3: Cross multiply
    192,670.16x = 288,631.32 × 141,977.20
  4. Step 4: Simplify right side
    192,670.16x = 40,979,066,645.90
  5. Step 5: Solve for x
    x = 40,979,066,645.90/192,670.16
  6. Step 6: Final answer
    x = 212,690.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.