Home / 103,109.14-142,248.09-67,286.26

Finding the Fourth Proportional to 103,109.14, 142,248.09 and 67,286.26

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Solution

The fourth proportional to 103,109.14, 142,248.09 and 67,286.26 is: 92,827.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,109.14 : 142,248.09 = 67,286.26 : x
  2. Step 2: Convert to fraction form
    103,109.14/142,248.09 = 67,286.26/x
  3. Step 3: Cross multiply
    103,109.14x = 142,248.09 × 67,286.26
  4. Step 4: Simplify right side
    103,109.14x = 9,571,341,968.24
  5. Step 5: Solve for x
    x = 9,571,341,968.24/103,109.14
  6. Step 6: Final answer
    x = 92,827.29

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1.5x scale

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.