Home / 113,838.78-156,951.45-93,345.33

Finding the Fourth Proportional to 113,838.78, 156,951.45 and 93,345.33

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Solution

The fourth proportional to 113,838.78, 156,951.45 and 93,345.33 is: 128,696.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,838.78 : 156,951.45 = 93,345.33 : x
  2. Step 2: Convert to fraction form
    113,838.78/156,951.45 = 93,345.33/x
  3. Step 3: Cross multiply
    113,838.78x = 156,951.45 × 93,345.33
  4. Step 4: Simplify right side
    113,838.78x = 14,650,684,894.23
  5. Step 5: Solve for x
    x = 14,650,684,894.23/113,838.78
  6. Step 6: Final answer
    x = 128,696.78

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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.