Home / 105,291.66-145,302.75-57,545.58

Finding the Fourth Proportional to 105,291.66, 145,302.75 and 57,545.58

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Solution

The fourth proportional to 105,291.66, 145,302.75 and 57,545.58 is: 79,413.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,291.66 : 145,302.75 = 57,545.58 : x
  2. Step 2: Convert to fraction form
    105,291.66/145,302.75 = 57,545.58/x
  3. Step 3: Cross multiply
    105,291.66x = 145,302.75 × 57,545.58
  4. Step 4: Simplify right side
    105,291.66x = 8,361,531,024.35
  5. Step 5: Solve for x
    x = 8,361,531,024.35/105,291.66
  6. Step 6: Final answer
    x = 79,413.04

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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.