Home / 114,729.88-158,372.40-72,280.48

Finding the Fourth Proportional to 114,729.88, 158,372.40 and 72,280.48

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Solution

The fourth proportional to 114,729.88, 158,372.40 and 72,280.48 is: 99,775.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,729.88 : 158,372.40 = 72,280.48 : x
  2. Step 2: Convert to fraction form
    114,729.88/158,372.40 = 72,280.48/x
  3. Step 3: Cross multiply
    114,729.88x = 158,372.40 × 72,280.48
  4. Step 4: Simplify right side
    114,729.88x = 11,447,233,090.75
  5. Step 5: Solve for x
    x = 11,447,233,090.75/114,729.88
  6. Step 6: Final answer
    x = 99,775.52

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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.