Home / 128,254.41-192,332.34-53,409.87

Finding the Fourth Proportional to 128,254.41, 192,332.34 and 53,409.87

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Solution

The fourth proportional to 128,254.41, 192,332.34 and 53,409.87 is: 80,094.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,254.41 : 192,332.34 = 53,409.87 : x
  2. Step 2: Convert to fraction form
    128,254.41/192,332.34 = 53,409.87/x
  3. Step 3: Cross multiply
    128,254.41x = 192,332.34 × 53,409.87
  4. Step 4: Simplify right side
    128,254.41x = 10,272,445,276.20
  5. Step 5: Solve for x
    x = 10,272,445,276.20/128,254.41
  6. Step 6: Final answer
    x = 80,094.29

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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.