Home / 186,311.09-257,101.66-105,737.15

Finding the Fourth Proportional to 186,311.09, 257,101.66 and 105,737.15

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Solution

The fourth proportional to 186,311.09, 257,101.66 and 105,737.15 is: 145,912.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,311.09 : 257,101.66 = 105,737.15 : x
  2. Step 2: Convert to fraction form
    186,311.09/257,101.66 = 105,737.15/x
  3. Step 3: Cross multiply
    186,311.09x = 257,101.66 × 105,737.15
  4. Step 4: Simplify right side
    186,311.09x = 27,185,196,788.67
  5. Step 5: Solve for x
    x = 27,185,196,788.67/186,311.09
  6. Step 6: Final answer
    x = 145,912.93

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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.