Home / 130,672.06-180,335.31-76,992.85

Finding the Fourth Proportional to 130,672.06, 180,335.31 and 76,992.85

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Solution

The fourth proportional to 130,672.06, 180,335.31 and 76,992.85 is: 106,254.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,672.06 : 180,335.31 = 76,992.85 : x
  2. Step 2: Convert to fraction form
    130,672.06/180,335.31 = 76,992.85/x
  3. Step 3: Cross multiply
    130,672.06x = 180,335.31 × 76,992.85
  4. Step 4: Simplify right side
    130,672.06x = 13,884,529,472.53
  5. Step 5: Solve for x
    x = 13,884,529,472.53/130,672.06
  6. Step 6: Final answer
    x = 106,254.77

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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.