Home / 103,207.96-142,413.20-57,266.84

Finding the Fourth Proportional to 103,207.96, 142,413.20 and 57,266.84

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Solution

The fourth proportional to 103,207.96, 142,413.20 and 57,266.84 is: 79,020.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,207.96 : 142,413.20 = 57,266.84 : x
  2. Step 2: Convert to fraction form
    103,207.96/142,413.20 = 57,266.84/x
  3. Step 3: Cross multiply
    103,207.96x = 142,413.20 × 57,266.84
  4. Step 4: Simplify right side
    103,207.96x = 8,155,553,938.29
  5. Step 5: Solve for x
    x = 8,155,553,938.29/103,207.96
  6. Step 6: Final answer
    x = 79,020.59

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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.