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Finding the Fourth Proportional to 104,365.38, 144,020.34 and 56,617.71

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Solution

The fourth proportional to 104,365.38, 144,020.34 and 56,617.71 is: 78,130.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,365.38 : 144,020.34 = 56,617.71 : x
  2. Step 2: Convert to fraction form
    104,365.38/144,020.34 = 56,617.71/x
  3. Step 3: Cross multiply
    104,365.38x = 144,020.34 × 56,617.71
  4. Step 4: Simplify right side
    104,365.38x = 8,154,101,844.22
  5. Step 5: Solve for x
    x = 8,154,101,844.22/104,365.38
  6. Step 6: Final answer
    x = 78,130.33

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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.