Home / 296,776.31-445,160.57-72,136.08

Finding the Fourth Proportional to 296,776.31, 445,160.57 and 72,136.08

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Solution

The fourth proportional to 296,776.31, 445,160.57 and 72,136.08 is: 108,203.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,776.31 : 445,160.57 = 72,136.08 : x
  2. Step 2: Convert to fraction form
    296,776.31/445,160.57 = 72,136.08/x
  3. Step 3: Cross multiply
    296,776.31x = 445,160.57 × 72,136.08
  4. Step 4: Simplify right side
    296,776.31x = 32,112,138,129.69
  5. Step 5: Solve for x
    x = 32,112,138,129.69/296,776.31
  6. Step 6: Final answer
    x = 108,203.17

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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.