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Finding the Fourth Proportional to 119,957.30, 179,929.81 and 45,071.69

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Solution

The fourth proportional to 119,957.30, 179,929.81 and 45,071.69 is: 67,605.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,957.30 : 179,929.81 = 45,071.69 : x
  2. Step 2: Convert to fraction form
    119,957.30/179,929.81 = 45,071.69/x
  3. Step 3: Cross multiply
    119,957.30x = 179,929.81 × 45,071.69
  4. Step 4: Simplify right side
    119,957.30x = 8,109,740,533.35
  5. Step 5: Solve for x
    x = 8,109,740,533.35/119,957.30
  6. Step 6: Final answer
    x = 67,605.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.