Home / 105,682.45-145,847.37-57,937.81

Finding the Fourth Proportional to 105,682.45, 145,847.37 and 57,937.81

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Solution

The fourth proportional to 105,682.45, 145,847.37 and 57,937.81 is: 79,957.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,682.45 : 145,847.37 = 57,937.81 : x
  2. Step 2: Convert to fraction form
    105,682.45/145,847.37 = 57,937.81/x
  3. Step 3: Cross multiply
    105,682.45x = 145,847.37 × 57,937.81
  4. Step 4: Simplify right side
    105,682.45x = 8,450,077,212.06
  5. Step 5: Solve for x
    x = 8,450,077,212.06/105,682.45
  6. Step 6: Final answer
    x = 79,957.24

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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.