Home / 111,095.26-153,151.98-79,208.80

Finding the Fourth Proportional to 111,095.26, 153,151.98 and 79,208.80

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Solution

The fourth proportional to 111,095.26, 153,151.98 and 79,208.80 is: 109,194.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,095.26 : 153,151.98 = 79,208.80 : x
  2. Step 2: Convert to fraction form
    111,095.26/153,151.98 = 79,208.80/x
  3. Step 3: Cross multiply
    111,095.26x = 153,151.98 × 79,208.80
  4. Step 4: Simplify right side
    111,095.26x = 12,130,984,553.42
  5. Step 5: Solve for x
    x = 12,130,984,553.42/111,095.26
  6. Step 6: Final answer
    x = 109,194.44

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1.5x scale

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.