Home / 157,628.39-236,359.08-68,778.14

Finding the Fourth Proportional to 157,628.39, 236,359.08 and 68,778.14

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Solution

The fourth proportional to 157,628.39, 236,359.08 and 68,778.14 is: 103,130.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,628.39 : 236,359.08 = 68,778.14 : x
  2. Step 2: Convert to fraction form
    157,628.39/236,359.08 = 68,778.14/x
  3. Step 3: Cross multiply
    157,628.39x = 236,359.08 × 68,778.14
  4. Step 4: Simplify right side
    157,628.39x = 16,256,336,712.72
  5. Step 5: Solve for x
    x = 16,256,336,712.72/157,628.39
  6. Step 6: Final answer
    x = 103,130.77

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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.