Home / 125,002.54-172,502.49-68,413.78

Finding the Fourth Proportional to 125,002.54, 172,502.49 and 68,413.78

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Solution

The fourth proportional to 125,002.54, 172,502.49 and 68,413.78 is: 94,410.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,002.54 : 172,502.49 = 68,413.78 : x
  2. Step 2: Convert to fraction form
    125,002.54/172,502.49 = 68,413.78/x
  3. Step 3: Cross multiply
    125,002.54x = 172,502.49 × 68,413.78
  4. Step 4: Simplify right side
    125,002.54x = 11,801,547,400.31
  5. Step 5: Solve for x
    x = 11,801,547,400.31/125,002.54
  6. Step 6: Final answer
    x = 94,410.46

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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.