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Finding the Fourth Proportional to 125,379.04, 173,104.14 and 77,683

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Solution

The fourth proportional to 125,379.04, 173,104.14 and 77,683 is: 107,252.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,379.04 : 173,104.14 = 77,683 : x
  2. Step 2: Convert to fraction form
    125,379.04/173,104.14 = 77,683/x
  3. Step 3: Cross multiply
    125,379.04x = 173,104.14 × 77,683
  4. Step 4: Simplify right side
    125,379.04x = 13,447,248,907.62
  5. Step 5: Solve for x
    x = 13,447,248,907.62/125,379.04
  6. Step 6: Final answer
    x = 107,252.77

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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.