Home / 268,045.04-402,023.78-90,548.12

Finding the Fourth Proportional to 268,045.04, 402,023.78 and 90,548.12

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Solution

The fourth proportional to 268,045.04, 402,023.78 and 90,548.12 is: 135,807.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,045.04 : 402,023.78 = 90,548.12 : x
  2. Step 2: Convert to fraction form
    268,045.04/402,023.78 = 90,548.12/x
  3. Step 3: Cross multiply
    268,045.04x = 402,023.78 × 90,548.12
  4. Step 4: Simplify right side
    268,045.04x = 36,402,497,474.29
  5. Step 5: Solve for x
    x = 36,402,497,474.29/268,045.04
  6. Step 6: Final answer
    x = 135,807.39

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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.