Home / 190,045.89-262,265.18-105,162.75

Finding the Fourth Proportional to 190,045.89, 262,265.18 and 105,162.75

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Solution

The fourth proportional to 190,045.89, 262,265.18 and 105,162.75 is: 145,125.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,045.89 : 262,265.18 = 105,162.75 : x
  2. Step 2: Convert to fraction form
    190,045.89/262,265.18 = 105,162.75/x
  3. Step 3: Cross multiply
    190,045.89x = 262,265.18 × 105,162.75
  4. Step 4: Simplify right side
    190,045.89x = 27,580,527,032.23
  5. Step 5: Solve for x
    x = 27,580,527,032.23/190,045.89
  6. Step 6: Final answer
    x = 145,125.62

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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.