Home / 119,457.09-164,850.81-65,742.12

Finding the Fourth Proportional to 119,457.09, 164,850.81 and 65,742.12

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Solution

The fourth proportional to 119,457.09, 164,850.81 and 65,742.12 is: 90,724.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,457.09 : 164,850.81 = 65,742.12 : x
  2. Step 2: Convert to fraction form
    119,457.09/164,850.81 = 65,742.12/x
  3. Step 3: Cross multiply
    119,457.09x = 164,850.81 × 65,742.12
  4. Step 4: Simplify right side
    119,457.09x = 10,837,641,733.12
  5. Step 5: Solve for x
    x = 10,837,641,733.12/119,457.09
  6. Step 6: Final answer
    x = 90,724.14

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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.