Home / 104,520.77-144,239.40-56,774.10

Finding the Fourth Proportional to 104,520.77, 144,239.40 and 56,774.10

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Solution

The fourth proportional to 104,520.77, 144,239.40 and 56,774.10 is: 78,348.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,520.77 : 144,239.40 = 56,774.10 : x
  2. Step 2: Convert to fraction form
    104,520.77/144,239.40 = 56,774.10/x
  3. Step 3: Cross multiply
    104,520.77x = 144,239.40 × 56,774.10
  4. Step 4: Simplify right side
    104,520.77x = 8,189,062,119.54
  5. Step 5: Solve for x
    x = 8,189,062,119.54/104,520.77
  6. Step 6: Final answer
    x = 78,348.66

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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.