Home / 112,323.28-168,338.40-45,685.48

Finding the Fourth Proportional to 112,323.28, 168,338.40 and 45,685.48

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Solution

The fourth proportional to 112,323.28, 168,338.40 and 45,685.48 is: 68,468.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,323.28 : 168,338.40 = 45,685.48 : x
  2. Step 2: Convert to fraction form
    112,323.28/168,338.40 = 45,685.48/x
  3. Step 3: Cross multiply
    112,323.28x = 168,338.40 × 45,685.48
  4. Step 4: Simplify right side
    112,323.28x = 7,690,620,606.43
  5. Step 5: Solve for x
    x = 7,690,620,606.43/112,323.28
  6. Step 6: Final answer
    x = 68,468.63

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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.