Home / 112,286.94-168,518.40-78,332.10

Finding the Fourth Proportional to 112,286.94, 168,518.40 and 78,332.10

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Solution

The fourth proportional to 112,286.94, 168,518.40 and 78,332.10 is: 117,559.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,286.94 : 168,518.40 = 78,332.10 : x
  2. Step 2: Convert to fraction form
    112,286.94/168,518.40 = 78,332.10/x
  3. Step 3: Cross multiply
    112,286.94x = 168,518.40 × 78,332.10
  4. Step 4: Simplify right side
    112,286.94x = 13,200,400,160.64
  5. Step 5: Solve for x
    x = 13,200,400,160.64/112,286.94
  6. Step 6: Final answer
    x = 117,559.53

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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.