Home / 108,890.94-150,293.25-78,345.66

Finding the Fourth Proportional to 108,890.94, 150,293.25 and 78,345.66

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Solution

The fourth proportional to 108,890.94, 150,293.25 and 78,345.66 is: 108,134.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,890.94 : 150,293.25 = 78,345.66 : x
  2. Step 2: Convert to fraction form
    108,890.94/150,293.25 = 78,345.66/x
  3. Step 3: Cross multiply
    108,890.94x = 150,293.25 × 78,345.66
  4. Step 4: Simplify right side
    108,890.94x = 11,774,823,864.80
  5. Step 5: Solve for x
    x = 11,774,823,864.80/108,890.94
  6. Step 6: Final answer
    x = 108,134.10

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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.