Home / 156,716.14-234,868.86-72,465.60

Finding the Fourth Proportional to 156,716.14, 234,868.86 and 72,465.60

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Solution

The fourth proportional to 156,716.14, 234,868.86 and 72,465.60 is: 108,603.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,716.14 : 234,868.86 = 72,465.60 : x
  2. Step 2: Convert to fraction form
    156,716.14/234,868.86 = 72,465.60/x
  3. Step 3: Cross multiply
    156,716.14x = 234,868.86 × 72,465.60
  4. Step 4: Simplify right side
    156,716.14x = 17,019,912,861.22
  5. Step 5: Solve for x
    x = 17,019,912,861.22/156,716.14
  6. Step 6: Final answer
    x = 108,603.45

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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.