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Finding the Fourth Proportional to 115,482.69, 159,370.66 and 66,424.22

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Solution

The fourth proportional to 115,482.69, 159,370.66 and 66,424.22 is: 91,668.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,482.69 : 159,370.66 = 66,424.22 : x
  2. Step 2: Convert to fraction form
    115,482.69/159,370.66 = 66,424.22/x
  3. Step 3: Cross multiply
    115,482.69x = 159,370.66 × 66,424.22
  4. Step 4: Simplify right side
    115,482.69x = 10,586,071,590.39
  5. Step 5: Solve for x
    x = 10,586,071,590.39/115,482.69
  6. Step 6: Final answer
    x = 91,668.04

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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.