Home / 112,212.39-154,909.23-69,784.59

Finding the Fourth Proportional to 112,212.39, 154,909.23 and 69,784.59

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Solution

The fourth proportional to 112,212.39, 154,909.23 and 69,784.59 is: 96,337.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,212.39 : 154,909.23 = 69,784.59 : x
  2. Step 2: Convert to fraction form
    112,212.39/154,909.23 = 69,784.59/x
  3. Step 3: Cross multiply
    112,212.39x = 154,909.23 × 69,784.59
  4. Step 4: Simplify right side
    112,212.39x = 10,810,277,102.77
  5. Step 5: Solve for x
    x = 10,810,277,102.77/112,212.39
  6. Step 6: Final answer
    x = 96,337.64

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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.