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Finding the Fourth Proportional to 125,169, 187,795.40 and 40,933.04

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Solution

The fourth proportional to 125,169, 187,795.40 and 40,933.04 is: 61,413.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,169 : 187,795.40 = 40,933.04 : x
  2. Step 2: Convert to fraction form
    125,169/187,795.40 = 40,933.04/x
  3. Step 3: Cross multiply
    125,169x = 187,795.40 × 40,933.04
  4. Step 4: Simplify right side
    125,169x = 7,687,036,620.02
  5. Step 5: Solve for x
    x = 7,687,036,620.02/125,169
  6. Step 6: Final answer
    x = 61,413.26

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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.