Home / 132,509.08-182,801.10-78,763.96

Finding the Fourth Proportional to 132,509.08, 182,801.10 and 78,763.96

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Solution

The fourth proportional to 132,509.08, 182,801.10 and 78,763.96 is: 108,657.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,509.08 : 182,801.10 = 78,763.96 : x
  2. Step 2: Convert to fraction form
    132,509.08/182,801.10 = 78,763.96/x
  3. Step 3: Cross multiply
    132,509.08x = 182,801.10 × 78,763.96
  4. Step 4: Simplify right side
    132,509.08x = 14,398,138,528.36
  5. Step 5: Solve for x
    x = 14,398,138,528.36/132,509.08
  6. Step 6: Final answer
    x = 108,657.75

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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.