Home / 190,045.86-262,268.73-105,170.82

Finding the Fourth Proportional to 190,045.86, 262,268.73 and 105,170.82

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Solution

The fourth proportional to 190,045.86, 262,268.73 and 105,170.82 is: 145,138.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,045.86 : 262,268.73 = 105,170.82 : x
  2. Step 2: Convert to fraction form
    190,045.86/262,268.73 = 105,170.82/x
  3. Step 3: Cross multiply
    190,045.86x = 262,268.73 × 105,170.82
  4. Step 4: Simplify right side
    190,045.86x = 27,583,017,394.46
  5. Step 5: Solve for x
    x = 27,583,017,394.46/190,045.86
  6. Step 6: Final answer
    x = 145,138.74

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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.