Home / 104,445.90-144,135.66-56,699.30

Finding the Fourth Proportional to 104,445.90, 144,135.66 and 56,699.30

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Solution

The fourth proportional to 104,445.90, 144,135.66 and 56,699.30 is: 78,245.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,445.90 : 144,135.66 = 56,699.30 : x
  2. Step 2: Convert to fraction form
    104,445.90/144,135.66 = 56,699.30/x
  3. Step 3: Cross multiply
    104,445.90x = 144,135.66 × 56,699.30
  4. Step 4: Simplify right side
    104,445.90x = 8,172,391,027.04
  5. Step 5: Solve for x
    x = 8,172,391,027.04/104,445.90
  6. Step 6: Final answer
    x = 78,245.21

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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.