Home / 189,831.25-261,972.59-104,953.78

Finding the Fourth Proportional to 189,831.25, 261,972.59 and 104,953.78

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Solution

The fourth proportional to 189,831.25, 261,972.59 and 104,953.78 is: 144,839.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,831.25 : 261,972.59 = 104,953.78 : x
  2. Step 2: Convert to fraction form
    189,831.25/261,972.59 = 104,953.78/x
  3. Step 3: Cross multiply
    189,831.25x = 261,972.59 × 104,953.78
  4. Step 4: Simplify right side
    189,831.25x = 27,495,013,576.89
  5. Step 5: Solve for x
    x = 27,495,013,576.89/189,831.25
  6. Step 6: Final answer
    x = 144,839.24

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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.