Home / 112,843.40-155,653.08-72,609.44

Finding the Fourth Proportional to 112,843.40, 155,653.08 and 72,609.44

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Solution

The fourth proportional to 112,843.40, 155,653.08 and 72,609.44 is: 100,155.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,843.40 : 155,653.08 = 72,609.44 : x
  2. Step 2: Convert to fraction form
    112,843.40/155,653.08 = 72,609.44/x
  3. Step 3: Cross multiply
    112,843.40x = 155,653.08 × 72,609.44
  4. Step 4: Simplify right side
    112,843.40x = 11,301,882,973.08
  5. Step 5: Solve for x
    x = 11,301,882,973.08/112,843.40
  6. Step 6: Final answer
    x = 100,155.46

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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.