Home / 153,986.13-212,494.86-96,656.25

Finding the Fourth Proportional to 153,986.13, 212,494.86 and 96,656.25

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Solution

The fourth proportional to 153,986.13, 212,494.86 and 96,656.25 is: 133,381.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,986.13 : 212,494.86 = 96,656.25 : x
  2. Step 2: Convert to fraction form
    153,986.13/212,494.86 = 96,656.25/x
  3. Step 3: Cross multiply
    153,986.13x = 212,494.86 × 96,656.25
  4. Step 4: Simplify right side
    153,986.13x = 20,538,956,311.88
  5. Step 5: Solve for x
    x = 20,538,956,311.88/153,986.13
  6. Step 6: Final answer
    x = 133,381.86

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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.