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Finding the Fourth Proportional to 130,064.63, 179,503.79 and 73,479.65

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Solution

The fourth proportional to 130,064.63, 179,503.79 and 73,479.65 is: 101,410.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,064.63 : 179,503.79 = 73,479.65 : x
  2. Step 2: Convert to fraction form
    130,064.63/179,503.79 = 73,479.65/x
  3. Step 3: Cross multiply
    130,064.63x = 179,503.79 × 73,479.65
  4. Step 4: Simplify right side
    130,064.63x = 13,189,874,397.96
  5. Step 5: Solve for x
    x = 13,189,874,397.96/130,064.63
  6. Step 6: Final answer
    x = 101,410.16

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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.