Home / 132,747.12-183,188.52-72,318.96

Finding the Fourth Proportional to 132,747.12, 183,188.52 and 72,318.96

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Solution

The fourth proportional to 132,747.12, 183,188.52 and 72,318.96 is: 99,798.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,747.12 : 183,188.52 = 72,318.96 : x
  2. Step 2: Convert to fraction form
    132,747.12/183,188.52 = 72,318.96/x
  3. Step 3: Cross multiply
    132,747.12x = 183,188.52 × 72,318.96
  4. Step 4: Simplify right side
    132,747.12x = 13,248,003,250.34
  5. Step 5: Solve for x
    x = 13,248,003,250.34/132,747.12
  6. Step 6: Final answer
    x = 99,798.80

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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.