Home / 156,729.45-235,129.64-51,549.33

Finding the Fourth Proportional to 156,729.45, 235,129.64 and 51,549.33

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Solution

The fourth proportional to 156,729.45, 235,129.64 and 51,549.33 is: 77,335.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,729.45 : 235,129.64 = 51,549.33 : x
  2. Step 2: Convert to fraction form
    156,729.45/235,129.64 = 51,549.33/x
  3. Step 3: Cross multiply
    156,729.45x = 235,129.64 × 51,549.33
  4. Step 4: Simplify right side
    156,729.45x = 12,120,775,405.14
  5. Step 5: Solve for x
    x = 12,120,775,405.14/156,729.45
  6. Step 6: Final answer
    x = 77,335.66

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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.