Home / 143,417.60-214,867.20-126,828.80

Finding the Fourth Proportional to 143,417.60, 214,867.20 and 126,828.80

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Solution

The fourth proportional to 143,417.60, 214,867.20 and 126,828.80 is: 190,013.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,417.60 : 214,867.20 = 126,828.80 : x
  2. Step 2: Convert to fraction form
    143,417.60/214,867.20 = 126,828.80/x
  3. Step 3: Cross multiply
    143,417.60x = 214,867.20 × 126,828.80
  4. Step 4: Simplify right side
    143,417.60x = 27,251,349,135.36
  5. Step 5: Solve for x
    x = 27,251,349,135.36/143,417.60
  6. Step 6: Final answer
    x = 190,013.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.