Home / 291,480.04-437,231.58-81,136.36

Finding the Fourth Proportional to 291,480.04, 437,231.58 and 81,136.36

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Solution

The fourth proportional to 291,480.04, 437,231.58 and 81,136.36 is: 121,707.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,480.04 : 437,231.58 = 81,136.36 : x
  2. Step 2: Convert to fraction form
    291,480.04/437,231.58 = 81,136.36/x
  3. Step 3: Cross multiply
    291,480.04x = 437,231.58 × 81,136.36
  4. Step 4: Simplify right side
    291,480.04x = 35,475,378,878.25
  5. Step 5: Solve for x
    x = 35,475,378,878.25/291,480.04
  6. Step 6: Final answer
    x = 121,707.75

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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.