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Finding the Fourth Proportional to 101,270, 139,752.04 and 55,951.08

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Solution

The fourth proportional to 101,270, 139,752.04 and 55,951.08 is: 77,212.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,270 : 139,752.04 = 55,951.08 : x
  2. Step 2: Convert to fraction form
    101,270/139,752.04 = 55,951.08/x
  3. Step 3: Cross multiply
    101,270x = 139,752.04 × 55,951.08
  4. Step 4: Simplify right side
    101,270x = 7,819,277,570.20
  5. Step 5: Solve for x
    x = 7,819,277,570.20/101,270
  6. Step 6: Final answer
    x = 77,212.18

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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.