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Finding the Fourth Proportional to 119,695.49, 165,176.62 and 65,980.71

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Solution

The fourth proportional to 119,695.49, 165,176.62 and 65,980.71 is: 91,051.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,695.49 : 165,176.62 = 65,980.71 : x
  2. Step 2: Convert to fraction form
    119,695.49/165,176.62 = 65,980.71/x
  3. Step 3: Cross multiply
    119,695.49x = 165,176.62 × 65,980.71
  4. Step 4: Simplify right side
    119,695.49x = 10,898,470,498.05
  5. Step 5: Solve for x
    x = 10,898,470,498.05/119,695.49
  6. Step 6: Final answer
    x = 91,051.64

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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.