Home / 156,738.24-235,147.14-72,559.13

Finding the Fourth Proportional to 156,738.24, 235,147.14 and 72,559.13

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Solution

The fourth proportional to 156,738.24, 235,147.14 and 72,559.13 is: 108,857.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,738.24 : 235,147.14 = 72,559.13 : x
  2. Step 2: Convert to fraction form
    156,738.24/235,147.14 = 72,559.13/x
  3. Step 3: Cross multiply
    156,738.24x = 235,147.14 × 72,559.13
  4. Step 4: Simplify right side
    156,738.24x = 17,062,071,900.39
  5. Step 5: Solve for x
    x = 17,062,071,900.39/156,738.24
  6. Step 6: Final answer
    x = 108,857.11

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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.