Home / 117,235.32-161,783.04-71,279.16

Finding the Fourth Proportional to 117,235.32, 161,783.04 and 71,279.16

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Solution

The fourth proportional to 117,235.32, 161,783.04 and 71,279.16 is: 98,364.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,235.32 : 161,783.04 = 71,279.16 : x
  2. Step 2: Convert to fraction form
    117,235.32/161,783.04 = 71,279.16/x
  3. Step 3: Cross multiply
    117,235.32x = 161,783.04 × 71,279.16
  4. Step 4: Simplify right side
    117,235.32x = 11,531,759,193.45
  5. Step 5: Solve for x
    x = 11,531,759,193.45/117,235.32
  6. Step 6: Final answer
    x = 98,364.21

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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.