Home / 105,870.12-146,099.64-58,122.24

Finding the Fourth Proportional to 105,870.12, 146,099.64 and 58,122.24

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Solution

The fourth proportional to 105,870.12, 146,099.64 and 58,122.24 is: 80,208.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,870.12 : 146,099.64 = 58,122.24 : x
  2. Step 2: Convert to fraction form
    105,870.12/146,099.64 = 58,122.24/x
  3. Step 3: Cross multiply
    105,870.12x = 146,099.64 × 58,122.24
  4. Step 4: Simplify right side
    105,870.12x = 8,491,638,339.99
  5. Step 5: Solve for x
    x = 8,491,638,339.99/105,870.12
  6. Step 6: Final answer
    x = 80,208.07

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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.