Home / 142,876.17-214,349.91-100,838.39

Finding the Fourth Proportional to 142,876.17, 214,349.91 and 100,838.39

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Solution

The fourth proportional to 142,876.17, 214,349.91 and 100,838.39 is: 151,282.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,876.17 : 214,349.91 = 100,838.39 : x
  2. Step 2: Convert to fraction form
    142,876.17/214,349.91 = 100,838.39/x
  3. Step 3: Cross multiply
    142,876.17x = 214,349.91 × 100,838.39
  4. Step 4: Simplify right side
    142,876.17x = 21,614,698,749.30
  5. Step 5: Solve for x
    x = 21,614,698,749.30/142,876.17
  6. Step 6: Final answer
    x = 151,282.74

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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.