Home / 125,929.21-173,729.28-83,413.93

Finding the Fourth Proportional to 125,929.21, 173,729.28 and 83,413.93

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Solution

The fourth proportional to 125,929.21, 173,729.28 and 83,413.93 is: 115,076.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,929.21 : 173,729.28 = 83,413.93 : x
  2. Step 2: Convert to fraction form
    125,929.21/173,729.28 = 83,413.93/x
  3. Step 3: Cross multiply
    125,929.21x = 173,729.28 × 83,413.93
  4. Step 4: Simplify right side
    125,929.21x = 14,491,442,000.87
  5. Step 5: Solve for x
    x = 14,491,442,000.87/125,929.21
  6. Step 6: Final answer
    x = 115,076.10

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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.