Home / 125,336.36-188,171.40-72,783.56

Finding the Fourth Proportional to 125,336.36, 188,171.40 and 72,783.56

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Solution

The fourth proportional to 125,336.36, 188,171.40 and 72,783.56 is: 109,272.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,336.36 : 188,171.40 = 72,783.56 : x
  2. Step 2: Convert to fraction form
    125,336.36/188,171.40 = 72,783.56/x
  3. Step 3: Cross multiply
    125,336.36x = 188,171.40 × 72,783.56
  4. Step 4: Simplify right side
    125,336.36x = 13,695,785,125.55
  5. Step 5: Solve for x
    x = 13,695,785,125.55/125,336.36
  6. Step 6: Final answer
    x = 109,272.24

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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.