Home / 124,785.30-187,090.28-43,712.49

Finding the Fourth Proportional to 124,785.30, 187,090.28 and 43,712.49

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Solution

The fourth proportional to 124,785.30, 187,090.28 and 43,712.49 is: 65,538.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,785.30 : 187,090.28 = 43,712.49 : x
  2. Step 2: Convert to fraction form
    124,785.30/187,090.28 = 43,712.49/x
  3. Step 3: Cross multiply
    124,785.30x = 187,090.28 × 43,712.49
  4. Step 4: Simplify right side
    124,785.30x = 8,178,181,993.60
  5. Step 5: Solve for x
    x = 8,178,181,993.60/124,785.30
  6. Step 6: Final answer
    x = 65,538.02

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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.