Home / 105,813.41-146,024.28-58,071.20

Finding the Fourth Proportional to 105,813.41, 146,024.28 and 58,071.20

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Solution

The fourth proportional to 105,813.41, 146,024.28 and 58,071.20 is: 80,139.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,813.41 : 146,024.28 = 58,071.20 : x
  2. Step 2: Convert to fraction form
    105,813.41/146,024.28 = 58,071.20/x
  3. Step 3: Cross multiply
    105,813.41x = 146,024.28 × 58,071.20
  4. Step 4: Simplify right side
    105,813.41x = 8,479,804,438.61
  5. Step 5: Solve for x
    x = 8,479,804,438.61/105,813.41
  6. Step 6: Final answer
    x = 80,139.23

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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.