Home / 112,437.45-155,185.34-72,202.05

Finding the Fourth Proportional to 112,437.45, 155,185.34 and 72,202.05

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Solution

The fourth proportional to 112,437.45, 155,185.34 and 72,202.05 is: 99,652.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,437.45 : 155,185.34 = 72,202.05 : x
  2. Step 2: Convert to fraction form
    112,437.45/155,185.34 = 72,202.05/x
  3. Step 3: Cross multiply
    112,437.45x = 155,185.34 × 72,202.05
  4. Step 4: Simplify right side
    112,437.45x = 11,204,699,316.94
  5. Step 5: Solve for x
    x = 11,204,699,316.94/112,437.45
  6. Step 6: Final answer
    x = 99,652.73

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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.