Home / 108,999.12-163,497.06-30,111.60

Finding the Fourth Proportional to 108,999.12, 163,497.06 and 30,111.60

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Solution

The fourth proportional to 108,999.12, 163,497.06 and 30,111.60 is: 45,166.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,999.12 : 163,497.06 = 30,111.60 : x
  2. Step 2: Convert to fraction form
    108,999.12/163,497.06 = 30,111.60/x
  3. Step 3: Cross multiply
    108,999.12x = 163,497.06 × 30,111.60
  4. Step 4: Simplify right side
    108,999.12x = 4,923,158,071.90
  5. Step 5: Solve for x
    x = 4,923,158,071.90/108,999.12
  6. Step 6: Final answer
    x = 45,166.95

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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.