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Finding the Fourth Proportional to 192,730.70, 289,045.02 and 87,526.28

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Solution

The fourth proportional to 192,730.70, 289,045.02 and 87,526.28 is: 131,266.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,730.70 : 289,045.02 = 87,526.28 : x
  2. Step 2: Convert to fraction form
    192,730.70/289,045.02 = 87,526.28/x
  3. Step 3: Cross multiply
    192,730.70x = 289,045.02 × 87,526.28
  4. Step 4: Simplify right side
    192,730.70x = 25,299,035,353.13
  5. Step 5: Solve for x
    x = 25,299,035,353.13/192,730.70
  6. Step 6: Final answer
    x = 131,266.25

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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.