Home / 245,986.76-339,457.07-137,088.69

Finding the Fourth Proportional to 245,986.76, 339,457.07 and 137,088.69

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Solution

The fourth proportional to 245,986.76, 339,457.07 and 137,088.69 is: 189,179.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,986.76 : 339,457.07 = 137,088.69 : x
  2. Step 2: Convert to fraction form
    245,986.76/339,457.07 = 137,088.69/x
  3. Step 3: Cross multiply
    245,986.76x = 339,457.07 × 137,088.69
  4. Step 4: Simplify right side
    245,986.76x = 46,535,724,352.09
  5. Step 5: Solve for x
    x = 46,535,724,352.09/245,986.76
  6. Step 6: Final answer
    x = 189,179.80

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1.5x scale

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.