Home / 190,314.09-262,629.95-105,429.33

Finding the Fourth Proportional to 190,314.09, 262,629.95 and 105,429.33

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Solution

The fourth proportional to 190,314.09, 262,629.95 and 105,429.33 is: 145,490.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,314.09 : 262,629.95 = 105,429.33 : x
  2. Step 2: Convert to fraction form
    190,314.09/262,629.95 = 105,429.33/x
  3. Step 3: Cross multiply
    190,314.09x = 262,629.95 × 105,429.33
  4. Step 4: Simplify right side
    190,314.09x = 27,688,899,139.29
  5. Step 5: Solve for x
    x = 27,688,899,139.29/190,314.09
  6. Step 6: Final answer
    x = 145,490.54

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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.