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Finding the Fourth Proportional to 130,043.36, 179,446.80 and 73,443.92

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Solution

The fourth proportional to 130,043.36, 179,446.80 and 73,443.92 is: 101,345.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,043.36 : 179,446.80 = 73,443.92 : x
  2. Step 2: Convert to fraction form
    130,043.36/179,446.80 = 73,443.92/x
  3. Step 3: Cross multiply
    130,043.36x = 179,446.80 × 73,443.92
  4. Step 4: Simplify right side
    130,043.36x = 13,179,276,423.46
  5. Step 5: Solve for x
    x = 13,179,276,423.46/130,043.36
  6. Step 6: Final answer
    x = 101,345.25

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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.