Home / 103,235.30-142,313.93-72,967.22

Finding the Fourth Proportional to 103,235.30, 142,313.93 and 72,967.22

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Solution

The fourth proportional to 103,235.30, 142,313.93 and 72,967.22 is: 100,588.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,235.30 : 142,313.93 = 72,967.22 : x
  2. Step 2: Convert to fraction form
    103,235.30/142,313.93 = 72,967.22/x
  3. Step 3: Cross multiply
    103,235.30x = 142,313.93 × 72,967.22
  4. Step 4: Simplify right side
    103,235.30x = 10,384,251,474.54
  5. Step 5: Solve for x
    x = 10,384,251,474.54/103,235.30
  6. Step 6: Final answer
    x = 100,588.19

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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.