Home / 132,156.54-182,293.08-78,403.50

Finding the Fourth Proportional to 132,156.54, 182,293.08 and 78,403.50

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Solution

The fourth proportional to 132,156.54, 182,293.08 and 78,403.50 is: 108,147.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,156.54 : 182,293.08 = 78,403.50 : x
  2. Step 2: Convert to fraction form
    132,156.54/182,293.08 = 78,403.50/x
  3. Step 3: Cross multiply
    132,156.54x = 182,293.08 × 78,403.50
  4. Step 4: Simplify right side
    132,156.54x = 14,292,415,203.77
  5. Step 5: Solve for x
    x = 14,292,415,203.77/132,156.54
  6. Step 6: Final answer
    x = 108,147.62

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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.