Home / 105,884.09-146,120.20-58,140.48

Finding the Fourth Proportional to 105,884.09, 146,120.20 and 58,140.48

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Solution

The fourth proportional to 105,884.09, 146,120.20 and 58,140.48 is: 80,233.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,884.09 : 146,120.20 = 58,140.48 : x
  2. Step 2: Convert to fraction form
    105,884.09/146,120.20 = 58,140.48/x
  3. Step 3: Cross multiply
    105,884.09x = 146,120.20 × 58,140.48
  4. Step 4: Simplify right side
    105,884.09x = 8,495,498,420.34
  5. Step 5: Solve for x
    x = 8,495,498,420.34/105,884.09
  6. Step 6: Final answer
    x = 80,233.95

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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.