Home / 206,072.87-284,477.95-138,134.22

Finding the Fourth Proportional to 206,072.87, 284,477.95 and 138,134.22

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Solution

The fourth proportional to 206,072.87, 284,477.95 and 138,134.22 is: 190,690.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,072.87 : 284,477.95 = 138,134.22 : x
  2. Step 2: Convert to fraction form
    206,072.87/284,477.95 = 138,134.22/x
  3. Step 3: Cross multiply
    206,072.87x = 284,477.95 × 138,134.22
  4. Step 4: Simplify right side
    206,072.87x = 39,296,141,322.19
  5. Step 5: Solve for x
    x = 39,296,141,322.19/206,072.87
  6. Step 6: Final answer
    x = 190,690.52

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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.