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Finding the Fourth Proportional to 130,077.60, 194,889.60 and 59,812.80

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Solution

The fourth proportional to 130,077.60, 194,889.60 and 59,812.80 is: 89,614.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,077.60 : 194,889.60 = 59,812.80 : x
  2. Step 2: Convert to fraction form
    130,077.60/194,889.60 = 59,812.80/x
  3. Step 3: Cross multiply
    130,077.60x = 194,889.60 × 59,812.80
  4. Step 4: Simplify right side
    130,077.60x = 11,656,892,666.88
  5. Step 5: Solve for x
    x = 11,656,892,666.88/130,077.60
  6. Step 6: Final answer
    x = 89,614.91

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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.