Home / 76,263.42-114,980.21-71,118.36

Finding the Fourth Proportional to 76,263.42, 114,980.21 and 71,118.36

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Solution

The fourth proportional to 76,263.42, 114,980.21 and 71,118.36 is: 107,223.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,263.42 : 114,980.21 = 71,118.36 : x
  2. Step 2: Convert to fraction form
    76,263.42/114,980.21 = 71,118.36/x
  3. Step 3: Cross multiply
    76,263.42x = 114,980.21 × 71,118.36
  4. Step 4: Simplify right side
    76,263.42x = 8,177,203,612.06
  5. Step 5: Solve for x
    x = 8,177,203,612.06/76,263.42
  6. Step 6: Final answer
    x = 107,223.14

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.