Home / 132,480.79-182,870.43-78,765.55

Finding the Fourth Proportional to 132,480.79, 182,870.43 and 78,765.55

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Solution

The fourth proportional to 132,480.79, 182,870.43 and 78,765.55 is: 108,724.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,480.79 : 182,870.43 = 78,765.55 : x
  2. Step 2: Convert to fraction form
    132,480.79/182,870.43 = 78,765.55/x
  3. Step 3: Cross multiply
    132,480.79x = 182,870.43 × 78,765.55
  4. Step 4: Simplify right side
    132,480.79x = 14,403,889,997.69
  5. Step 5: Solve for x
    x = 14,403,889,997.69/132,480.79
  6. Step 6: Final answer
    x = 108,724.37

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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.