Home / 235,485.04-352,455.36-128,705.44

Finding the Fourth Proportional to 235,485.04, 352,455.36 and 128,705.44

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Solution

The fourth proportional to 235,485.04, 352,455.36 and 128,705.44 is: 192,636.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,485.04 : 352,455.36 = 128,705.44 : x
  2. Step 2: Convert to fraction form
    235,485.04/352,455.36 = 128,705.44/x
  3. Step 3: Cross multiply
    235,485.04x = 352,455.36 × 128,705.44
  4. Step 4: Simplify right side
    235,485.04x = 45,362,922,189.16
  5. Step 5: Solve for x
    x = 45,362,922,189.16/235,485.04
  6. Step 6: Final answer
    x = 192,636.11

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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.