Home / 103,396.32-142,650.59-67,607.28

Finding the Fourth Proportional to 103,396.32, 142,650.59 and 67,607.28

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Solution

The fourth proportional to 103,396.32, 142,650.59 and 67,607.28 is: 93,274.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,396.32 : 142,650.59 = 67,607.28 : x
  2. Step 2: Convert to fraction form
    103,396.32/142,650.59 = 67,607.28/x
  3. Step 3: Cross multiply
    103,396.32x = 142,650.59 × 67,607.28
  4. Step 4: Simplify right side
    103,396.32x = 9,644,218,042.26
  5. Step 5: Solve for x
    x = 9,644,218,042.26/103,396.32
  6. Step 6: Final answer
    x = 93,274.29

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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.