Home / 190,245.16-262,535.10-105,360.40

Finding the Fourth Proportional to 190,245.16, 262,535.10 and 105,360.40

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Solution

The fourth proportional to 190,245.16, 262,535.10 and 105,360.40 is: 145,395.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,245.16 : 262,535.10 = 105,360.40 : x
  2. Step 2: Convert to fraction form
    190,245.16/262,535.10 = 105,360.40/x
  3. Step 3: Cross multiply
    190,245.16x = 262,535.10 × 105,360.40
  4. Step 4: Simplify right side
    190,245.16x = 27,660,803,150.04
  5. Step 5: Solve for x
    x = 27,660,803,150.04/190,245.16
  6. Step 6: Final answer
    x = 145,395.57

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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.