Home / 103,187.48-142,429.12-67,383.08

Finding the Fourth Proportional to 103,187.48, 142,429.12 and 67,383.08

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Solution

The fourth proportional to 103,187.48, 142,429.12 and 67,383.08 is: 93,008.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,187.48 : 142,429.12 = 67,383.08 : x
  2. Step 2: Convert to fraction form
    103,187.48/142,429.12 = 67,383.08/x
  3. Step 3: Cross multiply
    103,187.48x = 142,429.12 × 67,383.08
  4. Step 4: Simplify right side
    103,187.48x = 9,597,312,787.29
  5. Step 5: Solve for x
    x = 9,597,312,787.29/103,187.48
  6. Step 6: Final answer
    x = 93,008.50

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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.