Home / 112,704.08-155,530.32-61,716.32

Finding the Fourth Proportional to 112,704.08, 155,530.32 and 61,716.32

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Solution

The fourth proportional to 112,704.08, 155,530.32 and 61,716.32 is: 85,167.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,704.08 : 155,530.32 = 61,716.32 : x
  2. Step 2: Convert to fraction form
    112,704.08/155,530.32 = 61,716.32/x
  3. Step 3: Cross multiply
    112,704.08x = 155,530.32 × 61,716.32
  4. Step 4: Simplify right side
    112,704.08x = 9,598,758,998.82
  5. Step 5: Solve for x
    x = 9,598,758,998.82/112,704.08
  6. Step 6: Final answer
    x = 85,167.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.