Home / 190,445.80-262,806-109,899.16

Finding the Fourth Proportional to 190,445.80, 262,806 and 109,899.16

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Solution

The fourth proportional to 190,445.80, 262,806 and 109,899.16 is: 151,655.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,445.80 : 262,806 = 109,899.16 : x
  2. Step 2: Convert to fraction form
    190,445.80/262,806 = 109,899.16/x
  3. Step 3: Cross multiply
    190,445.80x = 262,806 × 109,899.16
  4. Step 4: Simplify right side
    190,445.80x = 28,882,158,642.96
  5. Step 5: Solve for x
    x = 28,882,158,642.96/190,445.80
  6. Step 6: Final answer
    x = 151,655.53

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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.