Home / 99,507.96-137,316.40-54,185.76

Finding the Fourth Proportional to 99,507.96, 137,316.40 and 54,185.76

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Solution

The fourth proportional to 99,507.96, 137,316.40 and 54,185.76 is: 74,773.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,507.96 : 137,316.40 = 54,185.76 : x
  2. Step 2: Convert to fraction form
    99,507.96/137,316.40 = 54,185.76/x
  3. Step 3: Cross multiply
    99,507.96x = 137,316.40 × 54,185.76
  4. Step 4: Simplify right side
    99,507.96x = 7,440,593,359.00
  5. Step 5: Solve for x
    x = 7,440,593,359.00/99,507.96
  6. Step 6: Final answer
    x = 74,773.85

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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.