Home / 131,092.80-180,907.45-74,504.17

Finding the Fourth Proportional to 131,092.80, 180,907.45 and 74,504.17

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Solution

The fourth proportional to 131,092.80, 180,907.45 and 74,504.17 is: 102,815.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,092.80 : 180,907.45 = 74,504.17 : x
  2. Step 2: Convert to fraction form
    131,092.80/180,907.45 = 74,504.17/x
  3. Step 3: Cross multiply
    131,092.80x = 180,907.45 × 74,504.17
  4. Step 4: Simplify right side
    131,092.80x = 13,478,359,409.07
  5. Step 5: Solve for x
    x = 13,478,359,409.07/131,092.80
  6. Step 6: Final answer
    x = 102,815.41

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1.5x scale

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.