Home / 112,537.26-155,228.11-72,187.11

Finding the Fourth Proportional to 112,537.26, 155,228.11 and 72,187.11

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Solution

The fourth proportional to 112,537.26, 155,228.11 and 72,187.11 is: 99,571.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,537.26 : 155,228.11 = 72,187.11 : x
  2. Step 2: Convert to fraction form
    112,537.26/155,228.11 = 72,187.11/x
  3. Step 3: Cross multiply
    112,537.26x = 155,228.11 × 72,187.11
  4. Step 4: Simplify right side
    112,537.26x = 11,205,468,471.19
  5. Step 5: Solve for x
    x = 11,205,468,471.19/112,537.26
  6. Step 6: Final answer
    x = 99,571.19

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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.