Home / 104,520.40-144,238.71-56,774.14

Finding the Fourth Proportional to 104,520.40, 144,238.71 and 56,774.14

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Solution

The fourth proportional to 104,520.40, 144,238.71 and 56,774.14 is: 78,348.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,520.40 : 144,238.71 = 56,774.14 : x
  2. Step 2: Convert to fraction form
    104,520.40/144,238.71 = 56,774.14/x
  3. Step 3: Cross multiply
    104,520.40x = 144,238.71 × 56,774.14
  4. Step 4: Simplify right side
    104,520.40x = 8,189,028,714.96
  5. Step 5: Solve for x
    x = 8,189,028,714.96/104,520.40
  6. Step 6: Final answer
    x = 78,348.62

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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.