Home / 190,715.23-263,184.55-105,830.47

Finding the Fourth Proportional to 190,715.23, 263,184.55 and 105,830.47

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Solution

The fourth proportional to 190,715.23, 263,184.55 and 105,830.47 is: 146,044.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,715.23 : 263,184.55 = 105,830.47 : x
  2. Step 2: Convert to fraction form
    190,715.23/263,184.55 = 105,830.47/x
  3. Step 3: Cross multiply
    190,715.23x = 263,184.55 × 105,830.47
  4. Step 4: Simplify right side
    190,715.23x = 27,852,944,623.24
  5. Step 5: Solve for x
    x = 27,852,944,623.24/190,715.23
  6. Step 6: Final answer
    x = 146,044.68

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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.