Home / 144,734.75-199,288.12-128,574.04

Finding the Fourth Proportional to 144,734.75, 199,288.12 and 128,574.04

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Solution

The fourth proportional to 144,734.75, 199,288.12 and 128,574.04 is: 177,036.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,734.75 : 199,288.12 = 128,574.04 : x
  2. Step 2: Convert to fraction form
    144,734.75/199,288.12 = 128,574.04/x
  3. Step 3: Cross multiply
    144,734.75x = 199,288.12 × 128,574.04
  4. Step 4: Simplify right side
    144,734.75x = 25,623,277,892.75
  5. Step 5: Solve for x
    x = 25,623,277,892.75/144,734.75
  6. Step 6: Final answer
    x = 177,036.11

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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.