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Finding the Fourth Proportional to 125,415.81, 188,120.07 and 36,671.40

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Solution

The fourth proportional to 125,415.81, 188,120.07 and 36,671.40 is: 55,006.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,415.81 : 188,120.07 = 36,671.40 : x
  2. Step 2: Convert to fraction form
    125,415.81/188,120.07 = 36,671.40/x
  3. Step 3: Cross multiply
    125,415.81x = 188,120.07 × 36,671.40
  4. Step 4: Simplify right side
    125,415.81x = 6,898,626,335.00
  5. Step 5: Solve for x
    x = 6,898,626,335.00/125,415.81
  6. Step 6: Final answer
    x = 55,006.03

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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.