Home / 156,734.87-235,142.06-72,555.75

Finding the Fourth Proportional to 156,734.87, 235,142.06 and 72,555.75

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Solution

The fourth proportional to 156,734.87, 235,142.06 and 72,555.75 is: 108,852.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,734.87 : 235,142.06 = 72,555.75 : x
  2. Step 2: Convert to fraction form
    156,734.87/235,142.06 = 72,555.75/x
  3. Step 3: Cross multiply
    156,734.87x = 235,142.06 × 72,555.75
  4. Step 4: Simplify right side
    156,734.87x = 17,060,908,157.07
  5. Step 5: Solve for x
    x = 17,060,908,157.07/156,734.87
  6. Step 6: Final answer
    x = 108,852.03

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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.