Home / 185,147.39-277,246.71-128,142.32

Finding the Fourth Proportional to 185,147.39, 277,246.71 and 128,142.32

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Solution

The fourth proportional to 185,147.39, 277,246.71 and 128,142.32 is: 191,885.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,147.39 : 277,246.71 = 128,142.32 : x
  2. Step 2: Convert to fraction form
    185,147.39/277,246.71 = 128,142.32/x
  3. Step 3: Cross multiply
    185,147.39x = 277,246.71 × 128,142.32
  4. Step 4: Simplify right side
    185,147.39x = 35,527,035,245.53
  5. Step 5: Solve for x
    x = 35,527,035,245.53/185,147.39
  6. Step 6: Final answer
    x = 191,885.16

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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.