Home / 320,113.74-480,172.32-95,472.36

Finding the Fourth Proportional to 320,113.74, 480,172.32 and 95,472.36

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Solution

The fourth proportional to 320,113.74, 480,172.32 and 95,472.36 is: 143,209.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,113.74 : 480,172.32 = 95,472.36 : x
  2. Step 2: Convert to fraction form
    320,113.74/480,172.32 = 95,472.36/x
  3. Step 3: Cross multiply
    320,113.74x = 480,172.32 × 95,472.36
  4. Step 4: Simplify right side
    320,113.74x = 45,843,184,597.08
  5. Step 5: Solve for x
    x = 45,843,184,597.08/320,113.74
  6. Step 6: Final answer
    x = 143,209.05

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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.