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Finding the Fourth Proportional to 153,408.72, 230,011.56 and 73,458.48

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Solution

The fourth proportional to 153,408.72, 230,011.56 and 73,458.48 is: 110,139.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,408.72 : 230,011.56 = 73,458.48 : x
  2. Step 2: Convert to fraction form
    153,408.72/230,011.56 = 73,458.48/x
  3. Step 3: Cross multiply
    153,408.72x = 230,011.56 × 73,458.48
  4. Step 4: Simplify right side
    153,408.72x = 16,896,299,580.03
  5. Step 5: Solve for x
    x = 16,896,299,580.03/153,408.72
  6. Step 6: Final answer
    x = 110,139.11

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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.