Home / 137,975.59-190,422.10-76,727.89

Finding the Fourth Proportional to 137,975.59, 190,422.10 and 76,727.89

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Solution

The fourth proportional to 137,975.59, 190,422.10 and 76,727.89 is: 105,893.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,975.59 : 190,422.10 = 76,727.89 : x
  2. Step 2: Convert to fraction form
    137,975.59/190,422.10 = 76,727.89/x
  3. Step 3: Cross multiply
    137,975.59x = 190,422.10 × 76,727.89
  4. Step 4: Simplify right side
    137,975.59x = 14,610,684,606.62
  5. Step 5: Solve for x
    x = 14,610,684,606.62/137,975.59
  6. Step 6: Final answer
    x = 105,893.26

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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.