Home / 127,531.60-191,370.30-48,702.40

Finding the Fourth Proportional to 127,531.60, 191,370.30 and 48,702.40

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Solution

The fourth proportional to 127,531.60, 191,370.30 and 48,702.40 is: 73,081.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,531.60 : 191,370.30 = 48,702.40 : x
  2. Step 2: Convert to fraction form
    127,531.60/191,370.30 = 48,702.40/x
  3. Step 3: Cross multiply
    127,531.60x = 191,370.30 × 48,702.40
  4. Step 4: Simplify right side
    127,531.60x = 9,320,192,898.72
  5. Step 5: Solve for x
    x = 9,320,192,898.72/127,531.60
  6. Step 6: Final answer
    x = 73,081.44

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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.