Home / 105,163.23-157,585.23-77,101.97

Finding the Fourth Proportional to 105,163.23, 157,585.23 and 77,101.97

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Solution

The fourth proportional to 105,163.23, 157,585.23 and 77,101.97 is: 115,535.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,163.23 : 157,585.23 = 77,101.97 : x
  2. Step 2: Convert to fraction form
    105,163.23/157,585.23 = 77,101.97/x
  3. Step 3: Cross multiply
    105,163.23x = 157,585.23 × 77,101.97
  4. Step 4: Simplify right side
    105,163.23x = 12,150,130,887.98
  5. Step 5: Solve for x
    x = 12,150,130,887.98/105,163.23
  6. Step 6: Final answer
    x = 115,535.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.