Home / 112,895.80-155,813.24-72,077.37

Finding the Fourth Proportional to 112,895.80, 155,813.24 and 72,077.37

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Solution

The fourth proportional to 112,895.80, 155,813.24 and 72,077.37 is: 99,477.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,895.80 : 155,813.24 = 72,077.37 : x
  2. Step 2: Convert to fraction form
    112,895.80/155,813.24 = 72,077.37/x
  3. Step 3: Cross multiply
    112,895.80x = 155,813.24 × 72,077.37
  4. Step 4: Simplify right side
    112,895.80x = 11,230,607,410.93
  5. Step 5: Solve for x
    x = 11,230,607,410.93/112,895.80
  6. Step 6: Final answer
    x = 99,477.64

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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.