Home / 131,292.82-181,184.61-74,702.98

Finding the Fourth Proportional to 131,292.82, 181,184.61 and 74,702.98

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Solution

The fourth proportional to 131,292.82, 181,184.61 and 74,702.98 is: 103,090.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,292.82 : 181,184.61 = 74,702.98 : x
  2. Step 2: Convert to fraction form
    131,292.82/181,184.61 = 74,702.98/x
  3. Step 3: Cross multiply
    131,292.82x = 181,184.61 × 74,702.98
  4. Step 4: Simplify right side
    131,292.82x = 13,535,030,297.14
  5. Step 5: Solve for x
    x = 13,535,030,297.14/131,292.82
  6. Step 6: Final answer
    x = 103,090.41

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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.