Home / 125,237.91-187,413.42-77,875.30

Finding the Fourth Proportional to 125,237.91, 187,413.42 and 77,875.30

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Solution

The fourth proportional to 125,237.91, 187,413.42 and 77,875.30 is: 116,537.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,237.91 : 187,413.42 = 77,875.30 : x
  2. Step 2: Convert to fraction form
    125,237.91/187,413.42 = 77,875.30/x
  3. Step 3: Cross multiply
    125,237.91x = 187,413.42 × 77,875.30
  4. Step 4: Simplify right side
    125,237.91x = 14,594,876,702.85
  5. Step 5: Solve for x
    x = 14,594,876,702.85/125,237.91
  6. Step 6: Final answer
    x = 116,537.21

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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.