Home / 189,934.40-284,818.44-90,123.02

Finding the Fourth Proportional to 189,934.40, 284,818.44 and 90,123.02

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Solution

The fourth proportional to 189,934.40, 284,818.44 and 90,123.02 is: 135,145.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,934.40 : 284,818.44 = 90,123.02 : x
  2. Step 2: Convert to fraction form
    189,934.40/284,818.44 = 90,123.02/x
  3. Step 3: Cross multiply
    189,934.40x = 284,818.44 × 90,123.02
  4. Step 4: Simplify right side
    189,934.40x = 25,668,697,964.49
  5. Step 5: Solve for x
    x = 25,668,697,964.49/189,934.40
  6. Step 6: Final answer
    x = 135,145.07

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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.