Home / 157,143.60-216,935.64-123,093.36

Finding the Fourth Proportional to 157,143.60, 216,935.64 and 123,093.36

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Solution

The fourth proportional to 157,143.60, 216,935.64 and 123,093.36 is: 169,929.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,143.60 : 216,935.64 = 123,093.36 : x
  2. Step 2: Convert to fraction form
    157,143.60/216,935.64 = 123,093.36/x
  3. Step 3: Cross multiply
    157,143.60x = 216,935.64 × 123,093.36
  4. Step 4: Simplify right side
    157,143.60x = 26,703,336,831.35
  5. Step 5: Solve for x
    x = 26,703,336,831.35/157,143.60
  6. Step 6: Final answer
    x = 169,929.52

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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.