Home / 291,639.06-437,519.61-123,159.78

Finding the Fourth Proportional to 291,639.06, 437,519.61 and 123,159.78

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Solution

The fourth proportional to 291,639.06, 437,519.61 and 123,159.78 is: 184,765.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,639.06 : 437,519.61 = 123,159.78 : x
  2. Step 2: Convert to fraction form
    291,639.06/437,519.61 = 123,159.78/x
  3. Step 3: Cross multiply
    291,639.06x = 437,519.61 × 123,159.78
  4. Step 4: Simplify right side
    291,639.06x = 53,884,818,913.29
  5. Step 5: Solve for x
    x = 53,884,818,913.29/291,639.06
  6. Step 6: Final answer
    x = 184,765.44

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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.