Home / 125,395.09-173,045.21-71,681.30

Finding the Fourth Proportional to 125,395.09, 173,045.21 and 71,681.30

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Solution

The fourth proportional to 125,395.09, 173,045.21 and 71,681.30 is: 98,920.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,395.09 : 173,045.21 = 71,681.30 : x
  2. Step 2: Convert to fraction form
    125,395.09/173,045.21 = 71,681.30/x
  3. Step 3: Cross multiply
    125,395.09x = 173,045.21 × 71,681.30
  4. Step 4: Simplify right side
    125,395.09x = 12,404,106,413.45
  5. Step 5: Solve for x
    x = 12,404,106,413.45/125,395.09
  6. Step 6: Final answer
    x = 98,920.19

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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.