Home / 107,071.56-147,761.27-61,751.45

Finding the Fourth Proportional to 107,071.56, 147,761.27 and 61,751.45

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Solution

The fourth proportional to 107,071.56, 147,761.27 and 61,751.45 is: 85,218.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,071.56 : 147,761.27 = 61,751.45 : x
  2. Step 2: Convert to fraction form
    107,071.56/147,761.27 = 61,751.45/x
  3. Step 3: Cross multiply
    107,071.56x = 147,761.27 × 61,751.45
  4. Step 4: Simplify right side
    107,071.56x = 9,124,471,628.78
  5. Step 5: Solve for x
    x = 9,124,471,628.78/107,071.56
  6. Step 6: Final answer
    x = 85,218.44

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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.