Home / 110,579.86-152,498.97-81,970.80

Finding the Fourth Proportional to 110,579.86, 152,498.97 and 81,970.80

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Solution

The fourth proportional to 110,579.86, 152,498.97 and 81,970.80 is: 113,044.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,579.86 : 152,498.97 = 81,970.80 : x
  2. Step 2: Convert to fraction form
    110,579.86/152,498.97 = 81,970.80/x
  3. Step 3: Cross multiply
    110,579.86x = 152,498.97 × 81,970.80
  4. Step 4: Simplify right side
    110,579.86x = 12,500,462,570.08
  5. Step 5: Solve for x
    x = 12,500,462,570.08/110,579.86
  6. Step 6: Final answer
    x = 113,044.66

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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.