Home / 125,943.93-173,768.18-87,660.50

Finding the Fourth Proportional to 125,943.93, 173,768.18 and 87,660.50

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Solution

The fourth proportional to 125,943.93, 173,768.18 and 87,660.50 is: 120,947.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,943.93 : 173,768.18 = 87,660.50 : x
  2. Step 2: Convert to fraction form
    125,943.93/173,768.18 = 87,660.50/x
  3. Step 3: Cross multiply
    125,943.93x = 173,768.18 × 87,660.50
  4. Step 4: Simplify right side
    125,943.93x = 15,232,604,893.20
  5. Step 5: Solve for x
    x = 15,232,604,893.20/125,943.93
  6. Step 6: Final answer
    x = 120,947.51

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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.