Home / 127,102.38-190,520.52-42,833.40

Finding the Fourth Proportional to 127,102.38, 190,520.52 and 42,833.40

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Solution

The fourth proportional to 127,102.38, 190,520.52 and 42,833.40 is: 64,205.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,102.38 : 190,520.52 = 42,833.40 : x
  2. Step 2: Convert to fraction form
    127,102.38/190,520.52 = 42,833.40/x
  3. Step 3: Cross multiply
    127,102.38x = 190,520.52 × 42,833.40
  4. Step 4: Simplify right side
    127,102.38x = 8,160,641,641.37
  5. Step 5: Solve for x
    x = 8,160,641,641.37/127,102.38
  6. Step 6: Final answer
    x = 64,205.26

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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.