Home / 104,138.04-143,710.29-56,391.24

Finding the Fourth Proportional to 104,138.04, 143,710.29 and 56,391.24

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Solution

The fourth proportional to 104,138.04, 143,710.29 and 56,391.24 is: 77,819.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,138.04 : 143,710.29 = 56,391.24 : x
  2. Step 2: Convert to fraction form
    104,138.04/143,710.29 = 56,391.24/x
  3. Step 3: Cross multiply
    104,138.04x = 143,710.29 × 56,391.24
  4. Step 4: Simplify right side
    104,138.04x = 8,104,001,453.86
  5. Step 5: Solve for x
    x = 8,104,001,453.86/104,138.04
  6. Step 6: Final answer
    x = 77,819.80

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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.