Home / 144,140.04-198,911.16-80,478.72

Finding the Fourth Proportional to 144,140.04, 198,911.16 and 80,478.72

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Solution

The fourth proportional to 144,140.04, 198,911.16 and 80,478.72 is: 111,059.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,140.04 : 198,911.16 = 80,478.72 : x
  2. Step 2: Convert to fraction form
    144,140.04/198,911.16 = 80,478.72/x
  3. Step 3: Cross multiply
    144,140.04x = 198,911.16 × 80,478.72
  4. Step 4: Simplify right side
    144,140.04x = 16,008,115,550.52
  5. Step 5: Solve for x
    x = 16,008,115,550.52/144,140.04
  6. Step 6: Final answer
    x = 111,059.46

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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.