Home / 103,420.62-142,719.84-58,098.69

Finding the Fourth Proportional to 103,420.62, 142,719.84 and 58,098.69

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Solution

The fourth proportional to 103,420.62, 142,719.84 and 58,098.69 is: 80,175.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,420.62 : 142,719.84 = 58,098.69 : x
  2. Step 2: Convert to fraction form
    103,420.62/142,719.84 = 58,098.69/x
  3. Step 3: Cross multiply
    103,420.62x = 142,719.84 × 58,098.69
  4. Step 4: Simplify right side
    103,420.62x = 8,291,835,741.01
  5. Step 5: Solve for x
    x = 8,291,835,741.01/103,420.62
  6. Step 6: Final answer
    x = 80,175.85

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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.