Home / 103,564.78-142,918.04-58,242.76

Finding the Fourth Proportional to 103,564.78, 142,918.04 and 58,242.76

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Solution

The fourth proportional to 103,564.78, 142,918.04 and 58,242.76 is: 80,374.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,564.78 : 142,918.04 = 58,242.76 : x
  2. Step 2: Convert to fraction form
    103,564.78/142,918.04 = 58,242.76/x
  3. Step 3: Cross multiply
    103,564.78x = 142,918.04 × 58,242.76
  4. Step 4: Simplify right side
    103,564.78x = 8,323,941,103.39
  5. Step 5: Solve for x
    x = 8,323,941,103.39/103,564.78
  6. Step 6: Final answer
    x = 80,374.25

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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.