Home / 133,261.38-183,952.55-90,219.83

Finding the Fourth Proportional to 133,261.38, 183,952.55 and 90,219.83

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Solution

The fourth proportional to 133,261.38, 183,952.55 and 90,219.83 is: 124,538.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,261.38 : 183,952.55 = 90,219.83 : x
  2. Step 2: Convert to fraction form
    133,261.38/183,952.55 = 90,219.83/x
  3. Step 3: Cross multiply
    133,261.38x = 183,952.55 × 90,219.83
  4. Step 4: Simplify right side
    133,261.38x = 16,596,167,094.85
  5. Step 5: Solve for x
    x = 16,596,167,094.85/133,261.38
  6. Step 6: Final answer
    x = 124,538.46

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1.5x scale

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.