Home / 132,490.59-182,776.70-78,745.06

Finding the Fourth Proportional to 132,490.59, 182,776.70 and 78,745.06

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Solution

The fourth proportional to 132,490.59, 182,776.70 and 78,745.06 is: 108,632.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,490.59 : 182,776.70 = 78,745.06 : x
  2. Step 2: Convert to fraction form
    132,490.59/182,776.70 = 78,745.06/x
  3. Step 3: Cross multiply
    132,490.59x = 182,776.70 × 78,745.06
  4. Step 4: Simplify right side
    132,490.59x = 14,392,762,633.44
  5. Step 5: Solve for x
    x = 14,392,762,633.44/132,490.59
  6. Step 6: Final answer
    x = 108,632.34

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1.5x scale

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.