Home / 112,178.12-154,814.10-64,433.48

Finding the Fourth Proportional to 112,178.12, 154,814.10 and 64,433.48

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Solution

The fourth proportional to 112,178.12, 154,814.10 and 64,433.48 is: 88,922.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,178.12 : 154,814.10 = 64,433.48 : x
  2. Step 2: Convert to fraction form
    112,178.12/154,814.10 = 64,433.48/x
  3. Step 3: Cross multiply
    112,178.12x = 154,814.10 × 64,433.48
  4. Step 4: Simplify right side
    112,178.12x = 9,975,211,216.07
  5. Step 5: Solve for x
    x = 9,975,211,216.07/112,178.12
  6. Step 6: Final answer
    x = 88,922.97

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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.