Home / 189,515.14-261,219.32-134,342.93

Finding the Fourth Proportional to 189,515.14, 261,219.32 and 134,342.93

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Solution

The fourth proportional to 189,515.14, 261,219.32 and 134,342.93 is: 185,172.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,515.14 : 261,219.32 = 134,342.93 : x
  2. Step 2: Convert to fraction form
    189,515.14/261,219.32 = 134,342.93/x
  3. Step 3: Cross multiply
    189,515.14x = 261,219.32 × 134,342.93
  4. Step 4: Simplify right side
    189,515.14x = 35,092,968,821.41
  5. Step 5: Solve for x
    x = 35,092,968,821.41/189,515.14
  6. Step 6: Final answer
    x = 185,172.38

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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.