Home / 112,254.76-154,907.72-66,909.37

Finding the Fourth Proportional to 112,254.76, 154,907.72 and 66,909.37

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Solution

The fourth proportional to 112,254.76, 154,907.72 and 66,909.37 is: 92,332.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,254.76 : 154,907.72 = 66,909.37 : x
  2. Step 2: Convert to fraction form
    112,254.76/154,907.72 = 66,909.37/x
  3. Step 3: Cross multiply
    112,254.76x = 154,907.72 × 66,909.37
  4. Step 4: Simplify right side
    112,254.76x = 10,364,777,149.02
  5. Step 5: Solve for x
    x = 10,364,777,149.02/112,254.76
  6. Step 6: Final answer
    x = 92,332.63

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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.