Home / 448,778.08-673,161.76-128,937.82

Finding the Fourth Proportional to 448,778.08, 673,161.76 and 128,937.82

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Solution

The fourth proportional to 448,778.08, 673,161.76 and 128,937.82 is: 193,405.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,778.08 : 673,161.76 = 128,937.82 : x
  2. Step 2: Convert to fraction form
    448,778.08/673,161.76 = 128,937.82/x
  3. Step 3: Cross multiply
    448,778.08x = 673,161.76 × 128,937.82
  4. Step 4: Simplify right side
    448,778.08x = 86,796,009,841.76
  5. Step 5: Solve for x
    x = 86,796,009,841.76/448,778.08
  6. Step 6: Final answer
    x = 193,405.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.