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Finding the Fourth Proportional to 123,007.16, 169,749.14 and 69,309.47

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Solution

The fourth proportional to 123,007.16, 169,749.14 and 69,309.47 is: 95,646.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,007.16 : 169,749.14 = 69,309.47 : x
  2. Step 2: Convert to fraction form
    123,007.16/169,749.14 = 69,309.47/x
  3. Step 3: Cross multiply
    123,007.16x = 169,749.14 × 69,309.47
  4. Step 4: Simplify right side
    123,007.16x = 11,765,223,004.18
  5. Step 5: Solve for x
    x = 11,765,223,004.18/123,007.16
  6. Step 6: Final answer
    x = 95,646.65

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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.