Home / 190,590.63-263,008.35-105,715.59

Finding the Fourth Proportional to 190,590.63, 263,008.35 and 105,715.59

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Solution

The fourth proportional to 190,590.63, 263,008.35 and 105,715.59 is: 145,883.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,590.63 : 263,008.35 = 105,715.59 : x
  2. Step 2: Convert to fraction form
    190,590.63/263,008.35 = 105,715.59/x
  3. Step 3: Cross multiply
    190,590.63x = 263,008.35 × 105,715.59
  4. Step 4: Simplify right side
    190,590.63x = 27,804,082,895.18
  5. Step 5: Solve for x
    x = 27,804,082,895.18/190,590.63
  6. Step 6: Final answer
    x = 145,883.79

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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.