Home / 156,716.65-235,112.78-51,530.05

Finding the Fourth Proportional to 156,716.65, 235,112.78 and 51,530.05

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Solution

The fourth proportional to 156,716.65, 235,112.78 and 51,530.05 is: 77,307.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,716.65 : 235,112.78 = 51,530.05 : x
  2. Step 2: Convert to fraction form
    156,716.65/235,112.78 = 51,530.05/x
  3. Step 3: Cross multiply
    156,716.65x = 235,112.78 × 51,530.05
  4. Step 4: Simplify right side
    156,716.65x = 12,115,373,309.04
  5. Step 5: Solve for x
    x = 12,115,373,309.04/156,716.65
  6. Step 6: Final answer
    x = 77,307.51

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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.