Home / 104,661.56-144,433.92-56,915.36

Finding the Fourth Proportional to 104,661.56, 144,433.92 and 56,915.36

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Solution

The fourth proportional to 104,661.56, 144,433.92 and 56,915.36 is: 78,543.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,661.56 : 144,433.92 = 56,915.36 : x
  2. Step 2: Convert to fraction form
    104,661.56/144,433.92 = 56,915.36/x
  3. Step 3: Cross multiply
    104,661.56x = 144,433.92 × 56,915.36
  4. Step 4: Simplify right side
    104,661.56x = 8,220,508,553.01
  5. Step 5: Solve for x
    x = 8,220,508,553.01/104,661.56
  6. Step 6: Final answer
    x = 78,543.72

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1.5x scale

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.