Home / 261,173.54-391,629.08-121,030.58

Finding the Fourth Proportional to 261,173.54, 391,629.08 and 121,030.58

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Solution

The fourth proportional to 261,173.54, 391,629.08 and 121,030.58 is: 181,485.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,173.54 : 391,629.08 = 121,030.58 : x
  2. Step 2: Convert to fraction form
    261,173.54/391,629.08 = 121,030.58/x
  3. Step 3: Cross multiply
    261,173.54x = 391,629.08 × 121,030.58
  4. Step 4: Simplify right side
    261,173.54x = 47,399,094,697.27
  5. Step 5: Solve for x
    x = 47,399,094,697.27/261,173.54
  6. Step 6: Final answer
    x = 181,485.06

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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.