Home / 137,361.08-189,562.50-76,931.60

Finding the Fourth Proportional to 137,361.08, 189,562.50 and 76,931.60

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Solution

The fourth proportional to 137,361.08, 189,562.50 and 76,931.60 is: 106,167.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,361.08 : 189,562.50 = 76,931.60 : x
  2. Step 2: Convert to fraction form
    137,361.08/189,562.50 = 76,931.60/x
  3. Step 3: Cross multiply
    137,361.08x = 189,562.50 × 76,931.60
  4. Step 4: Simplify right side
    137,361.08x = 14,583,346,425.00
  5. Step 5: Solve for x
    x = 14,583,346,425.00/137,361.08
  6. Step 6: Final answer
    x = 106,167.97

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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.