Home / 190,139.28-262,419.66-109,551.36

Finding the Fourth Proportional to 190,139.28, 262,419.66 and 109,551.36

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Solution

The fourth proportional to 190,139.28, 262,419.66 and 109,551.36 is: 151,196.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,139.28 : 262,419.66 = 109,551.36 : x
  2. Step 2: Convert to fraction form
    190,139.28/262,419.66 = 109,551.36/x
  3. Step 3: Cross multiply
    190,139.28x = 262,419.66 × 109,551.36
  4. Step 4: Simplify right side
    190,139.28x = 28,748,430,643.74
  5. Step 5: Solve for x
    x = 28,748,430,643.74/190,139.28
  6. Step 6: Final answer
    x = 151,196.69

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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.