Home / 115,582.32-173,361.06-78,381.18

Finding the Fourth Proportional to 115,582.32, 173,361.06 and 78,381.18

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Solution

The fourth proportional to 115,582.32, 173,361.06 and 78,381.18 is: 117,563.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,582.32 : 173,361.06 = 78,381.18 : x
  2. Step 2: Convert to fraction form
    115,582.32/173,361.06 = 78,381.18/x
  3. Step 3: Cross multiply
    115,582.32x = 173,361.06 × 78,381.18
  4. Step 4: Simplify right side
    115,582.32x = 13,588,244,448.85
  5. Step 5: Solve for x
    x = 13,588,244,448.85/115,582.32
  6. Step 6: Final answer
    x = 117,563.35

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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.