Home / 135,513.84-203,395.53-69,001.50

Finding the Fourth Proportional to 135,513.84, 203,395.53 and 69,001.50

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Solution

The fourth proportional to 135,513.84, 203,395.53 and 69,001.50 is: 103,565.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,513.84 : 203,395.53 = 69,001.50 : x
  2. Step 2: Convert to fraction form
    135,513.84/203,395.53 = 69,001.50/x
  3. Step 3: Cross multiply
    135,513.84x = 203,395.53 × 69,001.50
  4. Step 4: Simplify right side
    135,513.84x = 14,034,596,663.30
  5. Step 5: Solve for x
    x = 14,034,596,663.30/135,513.84
  6. Step 6: Final answer
    x = 103,565.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.