Home / 103,464.29-142,784.93-58,142.15

Finding the Fourth Proportional to 103,464.29, 142,784.93 and 58,142.15

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Solution

The fourth proportional to 103,464.29, 142,784.93 and 58,142.15 is: 80,238.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,464.29 : 142,784.93 = 58,142.15 : x
  2. Step 2: Convert to fraction form
    103,464.29/142,784.93 = 58,142.15/x
  3. Step 3: Cross multiply
    103,464.29x = 142,784.93 × 58,142.15
  4. Step 4: Simplify right side
    103,464.29x = 8,301,823,260.79
  5. Step 5: Solve for x
    x = 8,301,823,260.79/103,464.29
  6. Step 6: Final answer
    x = 80,238.54

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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.