Home / 130,413.08-195,731.40-129,431.36

Finding the Fourth Proportional to 130,413.08, 195,731.40 and 129,431.36

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Solution

The fourth proportional to 130,413.08, 195,731.40 and 129,431.36 is: 194,257.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,413.08 : 195,731.40 = 129,431.36 : x
  2. Step 2: Convert to fraction form
    130,413.08/195,731.40 = 129,431.36/x
  3. Step 3: Cross multiply
    130,413.08x = 195,731.40 × 129,431.36
  4. Step 4: Simplify right side
    130,413.08x = 25,333,781,296.70
  5. Step 5: Solve for x
    x = 25,333,781,296.70/130,413.08
  6. Step 6: Final answer
    x = 194,257.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.