Home / 190,037.72-262,248.36-105,155.40

Finding the Fourth Proportional to 190,037.72, 262,248.36 and 105,155.40

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Solution

The fourth proportional to 190,037.72, 262,248.36 and 105,155.40 is: 145,112.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,037.72 : 262,248.36 = 105,155.40 : x
  2. Step 2: Convert to fraction form
    190,037.72/262,248.36 = 105,155.40/x
  3. Step 3: Cross multiply
    190,037.72x = 262,248.36 × 105,155.40
  4. Step 4: Simplify right side
    190,037.72x = 27,576,831,195.14
  5. Step 5: Solve for x
    x = 27,576,831,195.14/190,037.72
  6. Step 6: Final answer
    x = 145,112.41

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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.