Home / 190,314.90-262,615.42-105,416.10

Finding the Fourth Proportional to 190,314.90, 262,615.42 and 105,416.10

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Solution

The fourth proportional to 190,314.90, 262,615.42 and 105,416.10 is: 145,463.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,314.90 : 262,615.42 = 105,416.10 : x
  2. Step 2: Convert to fraction form
    190,314.90/262,615.42 = 105,416.10/x
  3. Step 3: Cross multiply
    190,314.90x = 262,615.42 × 105,416.10
  4. Step 4: Simplify right side
    190,314.90x = 27,683,891,536.10
  5. Step 5: Solve for x
    x = 27,683,891,536.10/190,314.90
  6. Step 6: Final answer
    x = 145,463.61

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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.