Home / 137,006.88-189,056.13-86,003.31

Finding the Fourth Proportional to 137,006.88, 189,056.13 and 86,003.31

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Solution

The fourth proportional to 137,006.88, 189,056.13 and 86,003.31 is: 118,676.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,006.88 : 189,056.13 = 86,003.31 : x
  2. Step 2: Convert to fraction form
    137,006.88/189,056.13 = 86,003.31/x
  3. Step 3: Cross multiply
    137,006.88x = 189,056.13 × 86,003.31
  4. Step 4: Simplify right side
    137,006.88x = 16,259,452,225.52
  5. Step 5: Solve for x
    x = 16,259,452,225.52/137,006.88
  6. Step 6: Final answer
    x = 118,676.17

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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.