Home / 185,145.89-277,244.46-128,140.82

Finding the Fourth Proportional to 185,145.89, 277,244.46 and 128,140.82

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Solution

The fourth proportional to 185,145.89, 277,244.46 and 128,140.82 is: 191,882.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,145.89 : 277,244.46 = 128,140.82 : x
  2. Step 2: Convert to fraction form
    185,145.89/277,244.46 = 128,140.82/x
  3. Step 3: Cross multiply
    185,145.89x = 277,244.46 × 128,140.82
  4. Step 4: Simplify right side
    185,145.89x = 35,526,331,058.63
  5. Step 5: Solve for x
    x = 35,526,331,058.63/185,145.89
  6. Step 6: Final answer
    x = 191,882.91

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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.