Home / 156,740.88-235,151.07-72,561.75

Finding the Fourth Proportional to 156,740.88, 235,151.07 and 72,561.75

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Solution

The fourth proportional to 156,740.88, 235,151.07 and 72,561.75 is: 108,861.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,740.88 : 235,151.07 = 72,561.75 : x
  2. Step 2: Convert to fraction form
    156,740.88/235,151.07 = 72,561.75/x
  3. Step 3: Cross multiply
    156,740.88x = 235,151.07 × 72,561.75
  4. Step 4: Simplify right side
    156,740.88x = 17,062,973,153.57
  5. Step 5: Solve for x
    x = 17,062,973,153.57/156,740.88
  6. Step 6: Final answer
    x = 108,861.03

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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.