Home / 103,009.37-154,538.15-31,928.28

Finding the Fourth Proportional to 103,009.37, 154,538.15 and 31,928.28

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Solution

The fourth proportional to 103,009.37, 154,538.15 and 31,928.28 is: 47,899.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,009.37 : 154,538.15 = 31,928.28 : x
  2. Step 2: Convert to fraction form
    103,009.37/154,538.15 = 31,928.28/x
  3. Step 3: Cross multiply
    103,009.37x = 154,538.15 × 31,928.28
  4. Step 4: Simplify right side
    103,009.37x = 4,934,137,164.24
  5. Step 5: Solve for x
    x = 4,934,137,164.24/103,009.37
  6. Step 6: Final answer
    x = 47,899.89

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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.