Home / 137,910.68-190,305.06-77,476.58

Finding the Fourth Proportional to 137,910.68, 190,305.06 and 77,476.58

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Solution

The fourth proportional to 137,910.68, 190,305.06 and 77,476.58 is: 106,911.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,910.68 : 190,305.06 = 77,476.58 : x
  2. Step 2: Convert to fraction form
    137,910.68/190,305.06 = 77,476.58/x
  3. Step 3: Cross multiply
    137,910.68x = 190,305.06 × 77,476.58
  4. Step 4: Simplify right side
    137,910.68x = 14,744,184,253.97
  5. Step 5: Solve for x
    x = 14,744,184,253.97/137,910.68
  6. Step 6: Final answer
    x = 106,911.12

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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.