Home / 189,718.12-261,812.82-104,836.60

Finding the Fourth Proportional to 189,718.12, 261,812.82 and 104,836.60

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Solution

The fourth proportional to 189,718.12, 261,812.82 and 104,836.60 is: 144,675.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,718.12 : 261,812.82 = 104,836.60 : x
  2. Step 2: Convert to fraction form
    189,718.12/261,812.82 = 104,836.60/x
  3. Step 3: Cross multiply
    189,718.12x = 261,812.82 × 104,836.60
  4. Step 4: Simplify right side
    189,718.12x = 27,447,565,885.21
  5. Step 5: Solve for x
    x = 27,447,565,885.21/189,718.12
  6. Step 6: Final answer
    x = 144,675.51

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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.