Home / 219,442.76-328,971.86-105,533.47

Finding the Fourth Proportional to 219,442.76, 328,971.86 and 105,533.47

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Solution

The fourth proportional to 219,442.76, 328,971.86 and 105,533.47 is: 158,207.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,442.76 : 328,971.86 = 105,533.47 : x
  2. Step 2: Convert to fraction form
    219,442.76/328,971.86 = 105,533.47/x
  3. Step 3: Cross multiply
    219,442.76x = 328,971.86 × 105,533.47
  4. Step 4: Simplify right side
    219,442.76x = 34,717,541,918.15
  5. Step 5: Solve for x
    x = 34,717,541,918.15/219,442.76
  6. Step 6: Final answer
    x = 158,207.73

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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.