Home / 112,826-155,655.60-72,533.36

Finding the Fourth Proportional to 112,826, 155,655.60 and 72,533.36

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Solution

The fourth proportional to 112,826, 155,655.60 and 72,533.36 is: 100,067.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,826 : 155,655.60 = 72,533.36 : x
  2. Step 2: Convert to fraction form
    112,826/155,655.60 = 72,533.36/x
  3. Step 3: Cross multiply
    112,826x = 155,655.60 × 72,533.36
  4. Step 4: Simplify right side
    112,826x = 11,290,223,670.82
  5. Step 5: Solve for x
    x = 11,290,223,670.82/112,826
  6. Step 6: Final answer
    x = 100,067.57

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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.