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Finding the Fourth Proportional to 143,424.60, 214,877.70 and 126,835.80

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Solution

The fourth proportional to 143,424.60, 214,877.70 and 126,835.80 is: 190,024.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,424.60 : 214,877.70 = 126,835.80 : x
  2. Step 2: Convert to fraction form
    143,424.60/214,877.70 = 126,835.80/x
  3. Step 3: Cross multiply
    143,424.60x = 214,877.70 × 126,835.80
  4. Step 4: Simplify right side
    143,424.60x = 27,254,184,981.66
  5. Step 5: Solve for x
    x = 27,254,184,981.66/143,424.60
  6. Step 6: Final answer
    x = 190,024.48

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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.