Home / 112,013.01-154,525.73-66,665.57

Finding the Fourth Proportional to 112,013.01, 154,525.73 and 66,665.57

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Solution

The fourth proportional to 112,013.01, 154,525.73 and 66,665.57 is: 91,967.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,013.01 : 154,525.73 = 66,665.57 : x
  2. Step 2: Convert to fraction form
    112,013.01/154,525.73 = 66,665.57/x
  3. Step 3: Cross multiply
    112,013.01x = 154,525.73 × 66,665.57
  4. Step 4: Simplify right side
    112,013.01x = 10,301,544,764.16
  5. Step 5: Solve for x
    x = 10,301,544,764.16/112,013.01
  6. Step 6: Final answer
    x = 91,967.40

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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.