Home / 134,966.54-186,276.62-78,410.72

Finding the Fourth Proportional to 134,966.54, 186,276.62 and 78,410.72

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Solution

The fourth proportional to 134,966.54, 186,276.62 and 78,410.72 is: 108,220.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,966.54 : 186,276.62 = 78,410.72 : x
  2. Step 2: Convert to fraction form
    134,966.54/186,276.62 = 78,410.72/x
  3. Step 3: Cross multiply
    134,966.54x = 186,276.62 × 78,410.72
  4. Step 4: Simplify right side
    134,966.54x = 14,606,083,893.37
  5. Step 5: Solve for x
    x = 14,606,083,893.37/134,966.54
  6. Step 6: Final answer
    x = 108,220.04

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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.