Home / 127,328.72-190,702.40-60,815.72

Finding the Fourth Proportional to 127,328.72, 190,702.40 and 60,815.72

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Solution

The fourth proportional to 127,328.72, 190,702.40 and 60,815.72 is: 91,084.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,328.72 : 190,702.40 = 60,815.72 : x
  2. Step 2: Convert to fraction form
    127,328.72/190,702.40 = 60,815.72/x
  3. Step 3: Cross multiply
    127,328.72x = 190,702.40 × 60,815.72
  4. Step 4: Simplify right side
    127,328.72x = 11,597,703,761.73
  5. Step 5: Solve for x
    x = 11,597,703,761.73/127,328.72
  6. Step 6: Final answer
    x = 91,084.74

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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.