Home / 105,886.46-146,125.67-58,140

Finding the Fourth Proportional to 105,886.46, 146,125.67 and 58,140

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Solution

The fourth proportional to 105,886.46, 146,125.67 and 58,140 is: 80,234.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,886.46 : 146,125.67 = 58,140 : x
  2. Step 2: Convert to fraction form
    105,886.46/146,125.67 = 58,140/x
  3. Step 3: Cross multiply
    105,886.46x = 146,125.67 × 58,140
  4. Step 4: Simplify right side
    105,886.46x = 8,495,746,163.10
  5. Step 5: Solve for x
    x = 8,495,746,163.10/105,886.46
  6. Step 6: Final answer
    x = 80,234.49

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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.