Home / 104,520.24-144,238.38-56,774.40

Finding the Fourth Proportional to 104,520.24, 144,238.38 and 56,774.40

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Solution

The fourth proportional to 104,520.24, 144,238.38 and 56,774.40 is: 78,348.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,520.24 : 144,238.38 = 56,774.40 : x
  2. Step 2: Convert to fraction form
    104,520.24/144,238.38 = 56,774.40/x
  3. Step 3: Cross multiply
    104,520.24x = 144,238.38 × 56,774.40
  4. Step 4: Simplify right side
    104,520.24x = 8,189,047,481.47
  5. Step 5: Solve for x
    x = 8,189,047,481.47/104,520.24
  6. Step 6: Final answer
    x = 78,348.92

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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.