Home / 137,710.06-190,041.29-76,457.25

Finding the Fourth Proportional to 137,710.06, 190,041.29 and 76,457.25

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Solution

The fourth proportional to 137,710.06, 190,041.29 and 76,457.25 is: 105,511.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,710.06 : 190,041.29 = 76,457.25 : x
  2. Step 2: Convert to fraction form
    137,710.06/190,041.29 = 76,457.25/x
  3. Step 3: Cross multiply
    137,710.06x = 190,041.29 × 76,457.25
  4. Step 4: Simplify right side
    137,710.06x = 14,530,034,324.28
  5. Step 5: Solve for x
    x = 14,530,034,324.28/137,710.06
  6. Step 6: Final answer
    x = 105,511.79

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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.