Home / 189,415.09-261,277.54-112,883.86

Finding the Fourth Proportional to 189,415.09, 261,277.54 and 112,883.86

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Solution

The fourth proportional to 189,415.09, 261,277.54 and 112,883.86 is: 155,711.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,415.09 : 261,277.54 = 112,883.86 : x
  2. Step 2: Convert to fraction form
    189,415.09/261,277.54 = 112,883.86/x
  3. Step 3: Cross multiply
    189,415.09x = 261,277.54 × 112,883.86
  4. Step 4: Simplify right side
    189,415.09x = 29,494,017,246.50
  5. Step 5: Solve for x
    x = 29,494,017,246.50/189,415.09
  6. Step 6: Final answer
    x = 155,711.02

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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.