Home / 108,859.20-163,303.68-38,721.60

Finding the Fourth Proportional to 108,859.20, 163,303.68 and 38,721.60

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Solution

The fourth proportional to 108,859.20, 163,303.68 and 38,721.60 is: 58,087.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,859.20 : 163,303.68 = 38,721.60 : x
  2. Step 2: Convert to fraction form
    108,859.20/163,303.68 = 38,721.60/x
  3. Step 3: Cross multiply
    108,859.20x = 163,303.68 × 38,721.60
  4. Step 4: Simplify right side
    108,859.20x = 6,323,379,775.49
  5. Step 5: Solve for x
    x = 6,323,379,775.49/108,859.20
  6. Step 6: Final answer
    x = 58,087.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.