Home / 149,128.36-223,530.86-74,304.36

Finding the Fourth Proportional to 149,128.36, 223,530.86 and 74,304.36

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Solution

The fourth proportional to 149,128.36, 223,530.86 and 74,304.36 is: 111,375.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,128.36 : 223,530.86 = 74,304.36 : x
  2. Step 2: Convert to fraction form
    149,128.36/223,530.86 = 74,304.36/x
  3. Step 3: Cross multiply
    149,128.36x = 223,530.86 × 74,304.36
  4. Step 4: Simplify right side
    149,128.36x = 16,609,317,492.55
  5. Step 5: Solve for x
    x = 16,609,317,492.55/149,128.36
  6. Step 6: Final answer
    x = 111,375.98

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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.