Home / 104,238.12-143,500.68-99,477.48

Finding the Fourth Proportional to 104,238.12, 143,500.68 and 99,477.48

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Solution

The fourth proportional to 104,238.12, 143,500.68 and 99,477.48 is: 136,946.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,238.12 : 143,500.68 = 99,477.48 : x
  2. Step 2: Convert to fraction form
    104,238.12/143,500.68 = 99,477.48/x
  3. Step 3: Cross multiply
    104,238.12x = 143,500.68 × 99,477.48
  4. Step 4: Simplify right side
    104,238.12x = 14,275,086,024.69
  5. Step 5: Solve for x
    x = 14,275,086,024.69/104,238.12
  6. Step 6: Final answer
    x = 136,946.89

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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.