Home / 130,947.24-180,702.48-80,045.28

Finding the Fourth Proportional to 130,947.24, 180,702.48 and 80,045.28

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Solution

The fourth proportional to 130,947.24, 180,702.48 and 80,045.28 is: 110,459.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,947.24 : 180,702.48 = 80,045.28 : x
  2. Step 2: Convert to fraction form
    130,947.24/180,702.48 = 80,045.28/x
  3. Step 3: Cross multiply
    130,947.24x = 180,702.48 × 80,045.28
  4. Step 4: Simplify right side
    130,947.24x = 14,464,380,608.29
  5. Step 5: Solve for x
    x = 14,464,380,608.29/130,947.24
  6. Step 6: Final answer
    x = 110,459.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.