Home / 127,155.61-190,740.50-38,406.75

Finding the Fourth Proportional to 127,155.61, 190,740.50 and 38,406.75

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Solution

The fourth proportional to 127,155.61, 190,740.50 and 38,406.75 is: 57,612.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,155.61 : 190,740.50 = 38,406.75 : x
  2. Step 2: Convert to fraction form
    127,155.61/190,740.50 = 38,406.75/x
  3. Step 3: Cross multiply
    127,155.61x = 190,740.50 × 38,406.75
  4. Step 4: Simplify right side
    127,155.61x = 7,325,722,698.38
  5. Step 5: Solve for x
    x = 7,325,722,698.38/127,155.61
  6. Step 6: Final answer
    x = 57,612.26

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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.