Home / 109,907.66-151,680.71-61,514.45

Finding the Fourth Proportional to 109,907.66, 151,680.71 and 61,514.45

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Solution

The fourth proportional to 109,907.66, 151,680.71 and 61,514.45 is: 84,894.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,907.66 : 151,680.71 = 61,514.45 : x
  2. Step 2: Convert to fraction form
    109,907.66/151,680.71 = 61,514.45/x
  3. Step 3: Cross multiply
    109,907.66x = 151,680.71 × 61,514.45
  4. Step 4: Simplify right side
    109,907.66x = 9,330,554,846.64
  5. Step 5: Solve for x
    x = 9,330,554,846.64/109,907.66
  6. Step 6: Final answer
    x = 84,894.49

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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.