Home / 144,131.04-198,887.74-80,457.12

Finding the Fourth Proportional to 144,131.04, 198,887.74 and 80,457.12

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Solution

The fourth proportional to 144,131.04, 198,887.74 and 80,457.12 is: 111,023.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,131.04 : 198,887.74 = 80,457.12 : x
  2. Step 2: Convert to fraction form
    144,131.04/198,887.74 = 80,457.12/x
  3. Step 3: Cross multiply
    144,131.04x = 198,887.74 × 80,457.12
  4. Step 4: Simplify right side
    144,131.04x = 16,001,934,342.62
  5. Step 5: Solve for x
    x = 16,001,934,342.62/144,131.04
  6. Step 6: Final answer
    x = 111,023.51

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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.