Home / 111,685.56-154,161.96-71,507.52

Finding the Fourth Proportional to 111,685.56, 154,161.96 and 71,507.52

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Solution

The fourth proportional to 111,685.56, 154,161.96 and 71,507.52 is: 98,703.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,685.56 : 154,161.96 = 71,507.52 : x
  2. Step 2: Convert to fraction form
    111,685.56/154,161.96 = 71,507.52/x
  3. Step 3: Cross multiply
    111,685.56x = 154,161.96 × 71,507.52
  4. Step 4: Simplify right side
    111,685.56x = 11,023,739,437.94
  5. Step 5: Solve for x
    x = 11,023,739,437.94/111,685.56
  6. Step 6: Final answer
    x = 98,703.35

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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.