Home / 109,860.39-164,521.86-99,210.80

Finding the Fourth Proportional to 109,860.39, 164,521.86 and 99,210.80

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Solution

The fourth proportional to 109,860.39, 164,521.86 and 99,210.80 is: 148,573.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,860.39 : 164,521.86 = 99,210.80 : x
  2. Step 2: Convert to fraction form
    109,860.39/164,521.86 = 99,210.80/x
  3. Step 3: Cross multiply
    109,860.39x = 164,521.86 × 99,210.80
  4. Step 4: Simplify right side
    109,860.39x = 16,322,345,387.35
  5. Step 5: Solve for x
    x = 16,322,345,387.35/109,860.39
  6. Step 6: Final answer
    x = 148,573.52

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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.