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Finding the Fourth Proportional to 130,046.52, 179,541.54 and 82,340.76

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Solution

The fourth proportional to 130,046.52, 179,541.54 and 82,340.76 is: 113,679.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,046.52 : 179,541.54 = 82,340.76 : x
  2. Step 2: Convert to fraction form
    130,046.52/179,541.54 = 82,340.76/x
  3. Step 3: Cross multiply
    130,046.52x = 179,541.54 × 82,340.76
  4. Step 4: Simplify right side
    130,046.52x = 14,783,586,855.17
  5. Step 5: Solve for x
    x = 14,783,586,855.17/130,046.52
  6. Step 6: Final answer
    x = 113,679.22

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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.