Home / 289,105.93-433,700.20-89,443.36

Finding the Fourth Proportional to 289,105.93, 433,700.20 and 89,443.36

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Solution

The fourth proportional to 289,105.93, 433,700.20 and 89,443.36 is: 134,177.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,105.93 : 433,700.20 = 89,443.36 : x
  2. Step 2: Convert to fraction form
    289,105.93/433,700.20 = 89,443.36/x
  3. Step 3: Cross multiply
    289,105.93x = 433,700.20 × 89,443.36
  4. Step 4: Simplify right side
    289,105.93x = 38,791,600,952.17
  5. Step 5: Solve for x
    x = 38,791,600,952.17/289,105.93
  6. Step 6: Final answer
    x = 134,177.81

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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.