Home / 105,319.84-157,839.60-51,930.32

Finding the Fourth Proportional to 105,319.84, 157,839.60 and 51,930.32

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Solution

The fourth proportional to 105,319.84, 157,839.60 and 51,930.32 is: 77,826.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,319.84 : 157,839.60 = 51,930.32 : x
  2. Step 2: Convert to fraction form
    105,319.84/157,839.60 = 51,930.32/x
  3. Step 3: Cross multiply
    105,319.84x = 157,839.60 × 51,930.32
  4. Step 4: Simplify right side
    105,319.84x = 8,196,660,936.67
  5. Step 5: Solve for x
    x = 8,196,660,936.67/105,319.84
  6. Step 6: Final answer
    x = 77,826.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.