Home / 105,746.76-145,930.62-58,000.44

Finding the Fourth Proportional to 105,746.76, 145,930.62 and 58,000.44

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Solution

The fourth proportional to 105,746.76, 145,930.62 and 58,000.44 is: 80,040.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,746.76 : 145,930.62 = 58,000.44 : x
  2. Step 2: Convert to fraction form
    105,746.76/145,930.62 = 58,000.44/x
  3. Step 3: Cross multiply
    105,746.76x = 145,930.62 × 58,000.44
  4. Step 4: Simplify right side
    105,746.76x = 8,464,040,169.47
  5. Step 5: Solve for x
    x = 8,464,040,169.47/105,746.76
  6. Step 6: Final answer
    x = 80,040.66

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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.