Home / 98,920.36-136,457.54-75,007.56

Finding the Fourth Proportional to 98,920.36, 136,457.54 and 75,007.56

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Solution

The fourth proportional to 98,920.36, 136,457.54 and 75,007.56 is: 103,470.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,920.36 : 136,457.54 = 75,007.56 : x
  2. Step 2: Convert to fraction form
    98,920.36/136,457.54 = 75,007.56/x
  3. Step 3: Cross multiply
    98,920.36x = 136,457.54 × 75,007.56
  4. Step 4: Simplify right side
    98,920.36x = 10,235,347,119.00
  5. Step 5: Solve for x
    x = 10,235,347,119.00/98,920.36
  6. Step 6: Final answer
    x = 103,470.58

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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.