Home / 126,814.64-174,999.90-72,369.82

Finding the Fourth Proportional to 126,814.64, 174,999.90 and 72,369.82

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Solution

The fourth proportional to 126,814.64, 174,999.90 and 72,369.82 is: 99,867.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,814.64 : 174,999.90 = 72,369.82 : x
  2. Step 2: Convert to fraction form
    126,814.64/174,999.90 = 72,369.82/x
  3. Step 3: Cross multiply
    126,814.64x = 174,999.90 × 72,369.82
  4. Step 4: Simplify right side
    126,814.64x = 12,664,710,388.02
  5. Step 5: Solve for x
    x = 12,664,710,388.02/126,814.64
  6. Step 6: Final answer
    x = 99,867.89

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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.