Home / 99,507.53-137,318.41-54,186.05

Finding the Fourth Proportional to 99,507.53, 137,318.41 and 54,186.05

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Solution

The fourth proportional to 99,507.53, 137,318.41 and 54,186.05 is: 74,775.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,507.53 : 137,318.41 = 54,186.05 : x
  2. Step 2: Convert to fraction form
    99,507.53/137,318.41 = 54,186.05/x
  3. Step 3: Cross multiply
    99,507.53x = 137,318.41 × 54,186.05
  4. Step 4: Simplify right side
    99,507.53x = 7,440,742,230.18
  5. Step 5: Solve for x
    x = 7,440,742,230.18/99,507.53
  6. Step 6: Final answer
    x = 74,775.67

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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.