Home / 112,629.99-155,429.80-60,947.09

Finding the Fourth Proportional to 112,629.99, 155,429.80 and 60,947.09

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Solution

The fourth proportional to 112,629.99, 155,429.80 and 60,947.09 is: 84,107.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,629.99 : 155,429.80 = 60,947.09 : x
  2. Step 2: Convert to fraction form
    112,629.99/155,429.80 = 60,947.09/x
  3. Step 3: Cross multiply
    112,629.99x = 155,429.80 × 60,947.09
  4. Step 4: Simplify right side
    112,629.99x = 9,472,994,009.28
  5. Step 5: Solve for x
    x = 9,472,994,009.28/112,629.99
  6. Step 6: Final answer
    x = 84,107.21

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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.