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Finding the Fourth Proportional to 104,065.92, 143,610.96 and 56,319.28

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Solution

The fourth proportional to 104,065.92, 143,610.96 and 56,319.28 is: 77,720.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,065.92 : 143,610.96 = 56,319.28 : x
  2. Step 2: Convert to fraction form
    104,065.92/143,610.96 = 56,319.28/x
  3. Step 3: Cross multiply
    104,065.92x = 143,610.96 × 56,319.28
  4. Step 4: Simplify right side
    104,065.92x = 8,088,065,508.28
  5. Step 5: Solve for x
    x = 8,088,065,508.28/104,065.92
  6. Step 6: Final answer
    x = 77,720.60

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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.