Home / 291,451.02-437,140.08-81,105.36

Finding the Fourth Proportional to 291,451.02, 437,140.08 and 81,105.36

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Solution

The fourth proportional to 291,451.02, 437,140.08 and 81,105.36 is: 121,647.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,451.02 : 437,140.08 = 81,105.36 : x
  2. Step 2: Convert to fraction form
    291,451.02/437,140.08 = 81,105.36/x
  3. Step 3: Cross multiply
    291,451.02x = 437,140.08 × 81,105.36
  4. Step 4: Simplify right side
    291,451.02x = 35,454,403,558.83
  5. Step 5: Solve for x
    x = 35,454,403,558.83/291,451.02
  6. Step 6: Final answer
    x = 121,647.90

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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.