Home / 189,238.86-261,147.54-103,197.57

Finding the Fourth Proportional to 189,238.86, 261,147.54 and 103,197.57

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Solution

The fourth proportional to 189,238.86, 261,147.54 and 103,197.57 is: 142,411.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,238.86 : 261,147.54 = 103,197.57 : x
  2. Step 2: Convert to fraction form
    189,238.86/261,147.54 = 103,197.57/x
  3. Step 3: Cross multiply
    189,238.86x = 261,147.54 × 103,197.57
  4. Step 4: Simplify right side
    189,238.86x = 26,949,791,539.48
  5. Step 5: Solve for x
    x = 26,949,791,539.48/189,238.86
  6. Step 6: Final answer
    x = 142,411.51

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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.