Home / 103,613.10-142,985.88-58,291.14

Finding the Fourth Proportional to 103,613.10, 142,985.88 and 58,291.14

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Solution

The fourth proportional to 103,613.10, 142,985.88 and 58,291.14 is: 80,441.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,613.10 : 142,985.88 = 58,291.14 : x
  2. Step 2: Convert to fraction form
    103,613.10/142,985.88 = 58,291.14/x
  3. Step 3: Cross multiply
    103,613.10x = 142,985.88 × 58,291.14
  4. Step 4: Simplify right side
    103,613.10x = 8,334,809,949.10
  5. Step 5: Solve for x
    x = 8,334,809,949.10/103,613.10
  6. Step 6: Final answer
    x = 80,441.66

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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.