Home / 107,775.14-148,678.18-83,737.31

Finding the Fourth Proportional to 107,775.14, 148,678.18 and 83,737.31

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Solution

The fourth proportional to 107,775.14, 148,678.18 and 83,737.31 is: 115,517.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,775.14 : 148,678.18 = 83,737.31 : x
  2. Step 2: Convert to fraction form
    107,775.14/148,678.18 = 83,737.31/x
  3. Step 3: Cross multiply
    107,775.14x = 148,678.18 × 83,737.31
  4. Step 4: Simplify right side
    107,775.14x = 12,449,909,896.16
  5. Step 5: Solve for x
    x = 12,449,909,896.16/107,775.14
  6. Step 6: Final answer
    x = 115,517.46

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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.