Home / 112,443.46-155,193.62-72,208.06

Finding the Fourth Proportional to 112,443.46, 155,193.62 and 72,208.06

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Solution

The fourth proportional to 112,443.46, 155,193.62 and 72,208.06 is: 99,661.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,443.46 : 155,193.62 = 72,208.06 : x
  2. Step 2: Convert to fraction form
    112,443.46/155,193.62 = 72,208.06/x
  3. Step 3: Cross multiply
    112,443.46x = 155,193.62 × 72,208.06
  4. Step 4: Simplify right side
    112,443.46x = 11,206,230,224.58
  5. Step 5: Solve for x
    x = 11,206,230,224.58/112,443.46
  6. Step 6: Final answer
    x = 99,661.02

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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.