Home / 102,302.69-141,236.25-68,368.64

Finding the Fourth Proportional to 102,302.69, 141,236.25 and 68,368.64

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Solution

The fourth proportional to 102,302.69, 141,236.25 and 68,368.64 is: 94,387.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,302.69 : 141,236.25 = 68,368.64 : x
  2. Step 2: Convert to fraction form
    102,302.69/141,236.25 = 68,368.64/x
  3. Step 3: Cross multiply
    102,302.69x = 141,236.25 × 68,368.64
  4. Step 4: Simplify right side
    102,302.69x = 9,656,129,625.02
  5. Step 5: Solve for x
    x = 9,656,129,625.02/102,302.69
  6. Step 6: Final answer
    x = 94,387.84

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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.