Home / 99,110.39-148,668.21-28,989.63

Finding the Fourth Proportional to 99,110.39, 148,668.21 and 28,989.63

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Solution

The fourth proportional to 99,110.39, 148,668.21 and 28,989.63 is: 43,485.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,110.39 : 148,668.21 = 28,989.63 : x
  2. Step 2: Convert to fraction form
    99,110.39/148,668.21 = 28,989.63/x
  3. Step 3: Cross multiply
    99,110.39x = 148,668.21 × 28,989.63
  4. Step 4: Simplify right side
    99,110.39x = 4,309,836,400.66
  5. Step 5: Solve for x
    x = 4,309,836,400.66/99,110.39
  6. Step 6: Final answer
    x = 43,485.22

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1.5x scale

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.