Home / 145,188.45-200,341.96-80,657.37

Finding the Fourth Proportional to 145,188.45, 200,341.96 and 80,657.37

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Solution

The fourth proportional to 145,188.45, 200,341.96 and 80,657.37 is: 111,297.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,188.45 : 200,341.96 = 80,657.37 : x
  2. Step 2: Convert to fraction form
    145,188.45/200,341.96 = 80,657.37/x
  3. Step 3: Cross multiply
    145,188.45x = 200,341.96 × 80,657.37
  4. Step 4: Simplify right side
    145,188.45x = 16,159,055,392.60
  5. Step 5: Solve for x
    x = 16,159,055,392.60/145,188.45
  6. Step 6: Final answer
    x = 111,297.11

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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.