Home / 145,905.64-218,896.86-66,955.24

Finding the Fourth Proportional to 145,905.64, 218,896.86 and 66,955.24

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Solution

The fourth proportional to 145,905.64, 218,896.86 and 66,955.24 is: 100,450.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,905.64 : 218,896.86 = 66,955.24 : x
  2. Step 2: Convert to fraction form
    145,905.64/218,896.86 = 66,955.24/x
  3. Step 3: Cross multiply
    145,905.64x = 218,896.86 × 66,955.24
  4. Step 4: Simplify right side
    145,905.64x = 14,656,291,796.55
  5. Step 5: Solve for x
    x = 14,656,291,796.55/145,905.64
  6. Step 6: Final answer
    x = 100,450.48

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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.