Home / 128,577.05-192,896.37-53,655.52

Finding the Fourth Proportional to 128,577.05, 192,896.37 and 53,655.52

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Solution

The fourth proportional to 128,577.05, 192,896.37 and 53,655.52 is: 80,496.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,577.05 : 192,896.37 = 53,655.52 : x
  2. Step 2: Convert to fraction form
    128,577.05/192,896.37 = 53,655.52/x
  3. Step 3: Cross multiply
    128,577.05x = 192,896.37 × 53,655.52
  4. Step 4: Simplify right side
    128,577.05x = 10,349,955,038.46
  5. Step 5: Solve for x
    x = 10,349,955,038.46/128,577.05
  6. Step 6: Final answer
    x = 80,496.13

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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.