Home / 137,276.17-189,444.32-76,845.31

Finding the Fourth Proportional to 137,276.17, 189,444.32 and 76,845.31

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Solution

The fourth proportional to 137,276.17, 189,444.32 and 76,845.31 is: 106,048.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,276.17 : 189,444.32 = 76,845.31 : x
  2. Step 2: Convert to fraction form
    137,276.17/189,444.32 = 76,845.31/x
  3. Step 3: Cross multiply
    137,276.17x = 189,444.32 × 76,845.31
  4. Step 4: Simplify right side
    137,276.17x = 14,557,906,928.47
  5. Step 5: Solve for x
    x = 14,557,906,928.47/137,276.17
  6. Step 6: Final answer
    x = 106,048.32

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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.