Home / 185,149.89-277,250.45-128,144.81

Finding the Fourth Proportional to 185,149.89, 277,250.45 and 128,144.81

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Solution

The fourth proportional to 185,149.89, 277,250.45 and 128,144.81 is: 191,888.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,149.89 : 277,250.45 = 128,144.81 : x
  2. Step 2: Convert to fraction form
    185,149.89/277,250.45 = 128,144.81/x
  3. Step 3: Cross multiply
    185,149.89x = 277,250.45 × 128,144.81
  4. Step 4: Simplify right side
    185,149.89x = 35,528,206,290.07
  5. Step 5: Solve for x
    x = 35,528,206,290.07/185,149.89
  6. Step 6: Final answer
    x = 191,888.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.