Home / 190,279-262,585.02-105,401.56

Finding the Fourth Proportional to 190,279, 262,585.02 and 105,401.56

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Solution

The fourth proportional to 190,279, 262,585.02 and 105,401.56 is: 145,454.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,279 : 262,585.02 = 105,401.56 : x
  2. Step 2: Convert to fraction form
    190,279/262,585.02 = 105,401.56/x
  3. Step 3: Cross multiply
    190,279x = 262,585.02 × 105,401.56
  4. Step 4: Simplify right side
    190,279x = 27,676,870,740.63
  5. Step 5: Solve for x
    x = 27,676,870,740.63/190,279
  6. Step 6: Final answer
    x = 145,454.15

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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.