Home / 132,558.72-182,928.32-72,130.56

Finding the Fourth Proportional to 132,558.72, 182,928.32 and 72,130.56

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Solution

The fourth proportional to 132,558.72, 182,928.32 and 72,130.56 is: 99,538.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,558.72 : 182,928.32 = 72,130.56 : x
  2. Step 2: Convert to fraction form
    132,558.72/182,928.32 = 72,130.56/x
  3. Step 3: Cross multiply
    132,558.72x = 182,928.32 × 72,130.56
  4. Step 4: Simplify right side
    132,558.72x = 13,194,722,161.46
  5. Step 5: Solve for x
    x = 13,194,722,161.46/132,558.72
  6. Step 6: Final answer
    x = 99,538.70

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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.