Home / 86,186.19-118,939.38-47,946.96

Finding the Fourth Proportional to 86,186.19, 118,939.38 and 47,946.96

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Solution

The fourth proportional to 86,186.19, 118,939.38 and 47,946.96 is: 66,168.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,186.19 : 118,939.38 = 47,946.96 : x
  2. Step 2: Convert to fraction form
    86,186.19/118,939.38 = 47,946.96/x
  3. Step 3: Cross multiply
    86,186.19x = 118,939.38 × 47,946.96
  4. Step 4: Simplify right side
    86,186.19x = 5,702,781,695.28
  5. Step 5: Solve for x
    x = 5,702,781,695.28/86,186.19
  6. Step 6: Final answer
    x = 66,168.16

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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.