Home / 103,187.71-142,400.60-60,166.03

Finding the Fourth Proportional to 103,187.71, 142,400.60 and 60,166.03

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Solution

The fourth proportional to 103,187.71, 142,400.60 and 60,166.03 is: 83,030.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,187.71 : 142,400.60 = 60,166.03 : x
  2. Step 2: Convert to fraction form
    103,187.71/142,400.60 = 60,166.03/x
  3. Step 3: Cross multiply
    103,187.71x = 142,400.60 × 60,166.03
  4. Step 4: Simplify right side
    103,187.71x = 8,567,678,771.62
  5. Step 5: Solve for x
    x = 8,567,678,771.62/103,187.71
  6. Step 6: Final answer
    x = 83,030.03

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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.