Home / 104,445.91-144,135.65-56,699.29

Finding the Fourth Proportional to 104,445.91, 144,135.65 and 56,699.29

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Solution

The fourth proportional to 104,445.91, 144,135.65 and 56,699.29 is: 78,245.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,445.91 : 144,135.65 = 56,699.29 : x
  2. Step 2: Convert to fraction form
    104,445.91/144,135.65 = 56,699.29/x
  3. Step 3: Cross multiply
    104,445.91x = 144,135.65 × 56,699.29
  4. Step 4: Simplify right side
    104,445.91x = 8,172,389,018.69
  5. Step 5: Solve for x
    x = 8,172,389,018.69/104,445.91
  6. Step 6: Final answer
    x = 78,245.18

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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.