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Finding the Fourth Proportional to 157,391, 235,957.80 and 73,203.64

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Solution

The fourth proportional to 157,391, 235,957.80 and 73,203.64 is: 109,745.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,391 : 235,957.80 = 73,203.64 : x
  2. Step 2: Convert to fraction form
    157,391/235,957.80 = 73,203.64/x
  3. Step 3: Cross multiply
    157,391x = 235,957.80 × 73,203.64
  4. Step 4: Simplify right side
    157,391x = 17,272,969,846.39
  5. Step 5: Solve for x
    x = 17,272,969,846.39/157,391
  6. Step 6: Final answer
    x = 109,745.60

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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.