Home / 108,960.06-163,440.09-38,790.16

Finding the Fourth Proportional to 108,960.06, 163,440.09 and 38,790.16

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Solution

The fourth proportional to 108,960.06, 163,440.09 and 38,790.16 is: 58,185.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,960.06 : 163,440.09 = 38,790.16 : x
  2. Step 2: Convert to fraction form
    108,960.06/163,440.09 = 38,790.16/x
  3. Step 3: Cross multiply
    108,960.06x = 163,440.09 × 38,790.16
  4. Step 4: Simplify right side
    108,960.06x = 6,339,867,241.51
  5. Step 5: Solve for x
    x = 6,339,867,241.51/108,960.06
  6. Step 6: Final answer
    x = 58,185.24

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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.