Home / 142,876.04-214,106.70-80,413.16

Finding the Fourth Proportional to 142,876.04, 214,106.70 and 80,413.16

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Solution

The fourth proportional to 142,876.04, 214,106.70 and 80,413.16 is: 120,503.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,876.04 : 214,106.70 = 80,413.16 : x
  2. Step 2: Convert to fraction form
    142,876.04/214,106.70 = 80,413.16/x
  3. Step 3: Cross multiply
    142,876.04x = 214,106.70 × 80,413.16
  4. Step 4: Simplify right side
    142,876.04x = 17,216,996,324.17
  5. Step 5: Solve for x
    x = 17,216,996,324.17/142,876.04
  6. Step 6: Final answer
    x = 120,503.03

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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.