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Finding the Fourth Proportional to 125,700, 188,550 and 38,148

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Solution

The fourth proportional to 125,700, 188,550 and 38,148 is: 57,222

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,700 : 188,550 = 38,148 : x
  2. Step 2: Convert to fraction form
    125,700/188,550 = 38,148/x
  3. Step 3: Cross multiply
    125,700x = 188,550 × 38,148
  4. Step 4: Simplify right side
    125,700x = 7,192,805,400
  5. Step 5: Solve for x
    x = 7,192,805,400/125,700
  6. Step 6: Final answer
    x = 57,222

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.