Home / 135,740.42-203,641.02-40,972.28

Finding the Fourth Proportional to 135,740.42, 203,641.02 and 40,972.28

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Solution

The fourth proportional to 135,740.42, 203,641.02 and 40,972.28 is: 61,467.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,740.42 : 203,641.02 = 40,972.28 : x
  2. Step 2: Convert to fraction form
    135,740.42/203,641.02 = 40,972.28/x
  3. Step 3: Cross multiply
    135,740.42x = 203,641.02 × 40,972.28
  4. Step 4: Simplify right side
    135,740.42x = 8,343,636,890.93
  5. Step 5: Solve for x
    x = 8,343,636,890.93/135,740.42
  6. Step 6: Final answer
    x = 61,467.59

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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.