Home / 112,112.72-154,716.60-61,813.52

Finding the Fourth Proportional to 112,112.72, 154,716.60 and 61,813.52

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Solution

The fourth proportional to 112,112.72, 154,716.60 and 61,813.52 is: 85,303.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,112.72 : 154,716.60 = 61,813.52 : x
  2. Step 2: Convert to fraction form
    112,112.72/154,716.60 = 61,813.52/x
  3. Step 3: Cross multiply
    112,112.72x = 154,716.60 × 61,813.52
  4. Step 4: Simplify right side
    112,112.72x = 9,563,577,648.43
  5. Step 5: Solve for x
    x = 9,563,577,648.43/112,112.72
  6. Step 6: Final answer
    x = 85,303.23

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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.