Home / 103,398.03-142,679.21-58,065.71

Finding the Fourth Proportional to 103,398.03, 142,679.21 and 58,065.71

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Solution

The fourth proportional to 103,398.03, 142,679.21 and 58,065.71 is: 80,125.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,398.03 : 142,679.21 = 58,065.71 : x
  2. Step 2: Convert to fraction form
    103,398.03/142,679.21 = 58,065.71/x
  3. Step 3: Cross multiply
    103,398.03x = 142,679.21 × 58,065.71
  4. Step 4: Simplify right side
    103,398.03x = 8,284,768,627.16
  5. Step 5: Solve for x
    x = 8,284,768,627.16/103,398.03
  6. Step 6: Final answer
    x = 80,125.01

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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.