Home / 131,218.14-180,871.47-88,702.86

Finding the Fourth Proportional to 131,218.14, 180,871.47 and 88,702.86

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Solution

The fourth proportional to 131,218.14, 180,871.47 and 88,702.86 is: 122,268.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,218.14 : 180,871.47 = 88,702.86 : x
  2. Step 2: Convert to fraction form
    131,218.14/180,871.47 = 88,702.86/x
  3. Step 3: Cross multiply
    131,218.14x = 180,871.47 × 88,702.86
  4. Step 4: Simplify right side
    131,218.14x = 16,043,816,681.40
  5. Step 5: Solve for x
    x = 16,043,816,681.40/131,218.14
  6. Step 6: Final answer
    x = 122,268.28

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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.