Home / 117,165.16-161,688.08-63,450.26

Finding the Fourth Proportional to 117,165.16, 161,688.08 and 63,450.26

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Solution

The fourth proportional to 117,165.16, 161,688.08 and 63,450.26 is: 87,561.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,165.16 : 161,688.08 = 63,450.26 : x
  2. Step 2: Convert to fraction form
    117,165.16/161,688.08 = 63,450.26/x
  3. Step 3: Cross multiply
    117,165.16x = 161,688.08 × 63,450.26
  4. Step 4: Simplify right side
    117,165.16x = 10,259,150,714.90
  5. Step 5: Solve for x
    x = 10,259,150,714.90/117,165.16
  6. Step 6: Final answer
    x = 87,561.45

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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.