Home / 103,421.32-142,721.94-58,101.22

Finding the Fourth Proportional to 103,421.32, 142,721.94 and 58,101.22

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Solution

The fourth proportional to 103,421.32, 142,721.94 and 58,101.22 is: 80,179.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,421.32 : 142,721.94 = 58,101.22 : x
  2. Step 2: Convert to fraction form
    103,421.32/142,721.94 = 58,101.22/x
  3. Step 3: Cross multiply
    103,421.32x = 142,721.94 × 58,101.22
  4. Step 4: Simplify right side
    103,421.32x = 8,292,318,834.77
  5. Step 5: Solve for x
    x = 8,292,318,834.77/103,421.32
  6. Step 6: Final answer
    x = 80,179.97

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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.