Home / 141,128.93-194,756.60-77,465.36

Finding the Fourth Proportional to 141,128.93, 194,756.60 and 77,465.36

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Solution

The fourth proportional to 141,128.93, 194,756.60 and 77,465.36 is: 106,901.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,128.93 : 194,756.60 = 77,465.36 : x
  2. Step 2: Convert to fraction form
    141,128.93/194,756.60 = 77,465.36/x
  3. Step 3: Cross multiply
    141,128.93x = 194,756.60 × 77,465.36
  4. Step 4: Simplify right side
    141,128.93x = 15,086,890,811.93
  5. Step 5: Solve for x
    x = 15,086,890,811.93/141,128.93
  6. Step 6: Final answer
    x = 106,901.47

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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.