Home / 138,056.20-207,053.48-53,818.63

Finding the Fourth Proportional to 138,056.20, 207,053.48 and 53,818.63

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Solution

The fourth proportional to 138,056.20, 207,053.48 and 53,818.63 is: 80,715.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,056.20 : 207,053.48 = 53,818.63 : x
  2. Step 2: Convert to fraction form
    138,056.20/207,053.48 = 53,818.63/x
  3. Step 3: Cross multiply
    138,056.20x = 207,053.48 × 53,818.63
  4. Step 4: Simplify right side
    138,056.20x = 11,143,334,247.25
  5. Step 5: Solve for x
    x = 11,143,334,247.25/138,056.20
  6. Step 6: Final answer
    x = 80,715.93

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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.