Home / 132,484.10-198,272.55-79,931.30

Finding the Fourth Proportional to 132,484.10, 198,272.55 and 79,931.30

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Solution

The fourth proportional to 132,484.10, 198,272.55 and 79,931.30 is: 119,623.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,484.10 : 198,272.55 = 79,931.30 : x
  2. Step 2: Convert to fraction form
    132,484.10/198,272.55 = 79,931.30/x
  3. Step 3: Cross multiply
    132,484.10x = 198,272.55 × 79,931.30
  4. Step 4: Simplify right side
    132,484.10x = 15,848,182,675.82
  5. Step 5: Solve for x
    x = 15,848,182,675.82/132,484.10
  6. Step 6: Final answer
    x = 119,623.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.