Home / 189,868.05-284,743.76-89,998.70

Finding the Fourth Proportional to 189,868.05, 284,743.76 and 89,998.70

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Solution

The fourth proportional to 189,868.05, 284,743.76 and 89,998.70 is: 134,970.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,868.05 : 284,743.76 = 89,998.70 : x
  2. Step 2: Convert to fraction form
    189,868.05/284,743.76 = 89,998.70/x
  3. Step 3: Cross multiply
    189,868.05x = 284,743.76 × 89,998.70
  4. Step 4: Simplify right side
    189,868.05x = 25,626,566,359.40
  5. Step 5: Solve for x
    x = 25,626,566,359.40/189,868.05
  6. Step 6: Final answer
    x = 134,970.40

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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.