Home / 236,108.52-325,830.18-128,678.50

Finding the Fourth Proportional to 236,108.52, 325,830.18 and 128,678.50

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Solution

The fourth proportional to 236,108.52, 325,830.18 and 128,678.50 is: 177,576.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,108.52 : 325,830.18 = 128,678.50 : x
  2. Step 2: Convert to fraction form
    236,108.52/325,830.18 = 128,678.50/x
  3. Step 3: Cross multiply
    236,108.52x = 325,830.18 × 128,678.50
  4. Step 4: Simplify right side
    236,108.52x = 41,927,338,817.13
  5. Step 5: Solve for x
    x = 41,927,338,817.13/236,108.52
  6. Step 6: Final answer
    x = 177,576.56

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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.